My Son Wears Size 7 Shoe Wht Size Socks

Measurement scale indicating the fitting size of a shoe

A soldier recruit measuring for shoe size during uniform issue at the Afghan National Army training site in Kabul, Afghanistan, 2002

A shoe size is an indication of the fitting size of a shoe for a person.

There are a number of different shoe-size systems used worldwide. While all shoe sizes use a number to indicate the length of the shoe, they differ in exactly what they measure, what unit of measurement they use, and where the size 0 (or 1) is positioned. Some systems also indicate the shoe width, sometimes also as a number, but in many cases by one or more letters. Some regions use different shoe-size systems for different types of shoes (e.g. men's, women's, children's, sport, and safety shoes). This article sets out several complexities in the definition of shoe sizes. In practice, shoes should be tried on for size and fit before they are purchased.

Deriving the shoe size [edit]

Foot versus shoe and last [edit]

The length of a person's foot is commonly defined as the distance between two parallel lines that are perpendicular to the foot and in contact with the most prominent toe and the most prominent part of the heel. Foot length is measured with the subject standing barefoot and the weight of the body equally distributed between both feet.

The sizes of the left and right feet are often slightly different. In this case, both feet are measured, and purchasers of mass-produced shoes are advised to purchase a shoe size based on the larger foot, as most retailers do not sell pairs of shoes in non-matching sizes.

Each size of shoe is considered suitable for a small interval of foot lengths, typically limited by half-point of the shoe size system.

A shoe-size system can refer to three characteristic lengths:

  • The median length of feet for which a shoe is suitable. For customers, this measure has the advantage of being directly related to their body measures. It applies equally to any type, form, or material of shoe. However, this measure is less popular with manufacturers,[ citation needed ] because it requires them to test carefully for each new shoe model, for which range of foot sizes it is recommendable. It puts on the manufacturer the burden of ensuring that the shoe will fit a foot of a given length.
  • The length of the inner cavity of the shoe. This measure has the advantage that it can be measured easily on the finished product. However, it will vary with manufacturing tolerances and only gives the customer very crude information about the range of foot sizes for which the shoe is suitable.
  • The length of the "last", the foot-shaped template over which the shoe is manufactured. This measure is the easiest one for the manufacturer to use, because it identifies only the tool used to produce the shoe. It makes no promise about manufacturing tolerances or for what size of foot the shoe is actually suitable. It leaves all responsibility and risk of choosing the correct size with the customer. Further, the last can be measured in several different ways resulting in different measurements.[1]

All these measures differ substantially from one another for the same shoe. For example, the inner cavity of a shoe must typically be 15 mm longer than the foot, and the shoe last would be 2 size points larger than the foot, but this varies between different types of shoes and the shoe size system used. The typical range lies between 12 to 23 inch (12.7 to 16.9 mm) for the UK/US size system and 43 to 53  cm (13.3 to 16.7 mm) for the European size system, but may extend to 14 to 34 inch (6.4 to 19.1 mm) and 23 to 63  cm (6.7 to 20.0 mm).

Length [edit]

Sizing systems also differ in the units of measurement they use. This also results in different increments between shoe sizes, because usually only "full" or "half" sizes are made.

The following length units are commonly used today to define shoe-size systems:

  • The Paris point equates to 23 centimetre (6.67 mm; 0.26 in). Whole sizes are incremented by 1 Paris point; this corresponds to 3.33 millimetres (0.131 in) between half sizes. This unit is commonly used in Continental Europe, excluding Russia and former USSR countries.
  • The barleycorn is an old English unit that equates to 13 inch (8.47 mm). This is the basis for current UK and North American shoe sizes, with the largest shoe size taken as twelve inches (a size 12) i.e. 30.5 cm, and then counting backwards in barleycorn units, so a size 11 is 11.67 inches or 29.6 cm.
  • Metric measurements in millimetres (mm) with intervals of 5 mm and 7.5 mm are used in the international Mondopoint system (USSR/Russia and East Asia).

Zero point [edit]

The sizing systems also place size 0 (or 1) at different locations:

  • Size 0 as a foot's length of 0. The shoe size is directly proportional to the length of the foot in the chosen unit of measurement. Sizes of children's, men's, and women's shoes, as well as sizes of different types of shoes, can be compared directly. This is used with the Mondopoint system (USSR/Russia and East Asia).
  • Size 0 as the length of the shoe's inner cavity of 0. The shoe size is then directly proportional to the inner length of the shoe. This is used with systems that also take the measurement from the shoe. While sizes of children's, men's and women's shoes can be compared directly, this is not necessarily true for different types of shoes that require a different amount of "wiggle room" in the toe box. This is used with the Continental European system.
  • Size 0 (or 1) can just be simply a shoe of a given length. Typically this will be the shortest length deemed practical; but this can be different for children's, teenagers', men's, and women's shoes - making it impossible to compare sizes. For example, a women's shoe at size 8 is a different length from a men's shoe at size 8 in the US system, but not the British.

Width [edit]

Some systems also include the width of a foot (or the girth of a shoe last), but do so in a variety of ways:

  • Measured foot width in millimetres (mm) - this is done with the Mondopoint system.
  • Measured width as a letter (or combination of letters), which is taken from a table (indexed to length and width/girth) or just assigned on an ad-hoc basis. Examples are (each starting with the narrowest width):
    • A, B, C, D, E, EE, EEE is the typical North American system and follows the brannock device standards, per the system B is narrow, C is regular, D is medium, E is wide, EE is extra wide and so on.
    • 4A, 3A, 2A, A, B, C, D, E, 2E, 3E, 4E, 5E, 6E (variant North American).
    • In Japanese Mondopoint system the unlettered D size is the norm for men and B for women in its foot circumference.
    • C, D, E, F, G, H (common UK; "medium" is usually F, but varies by manufacturer—makers Edward Green and Crockett & Jones, among others, use E instead, but one maker's E is not necessarily the same size as another's).
    • N (narrow), M (medium) or R (regular), W (wide).

The width for which these sizes are suitable can vary significantly between manufacturers. The A–E width indicators used by most American, Canadian, and some British shoe manufacturers are typically based on the width of the foot, and common step sizes are 316 inch (4.8 mm).

Common sizing systems [edit]

United Kingdom [edit]

Shoe size in the United Kingdom, Ireland, India, Pakistan and South Africa is based on the length of the last used to make the shoes, measured in barleycorns ( 13 inch) starting from the smallest size deemed practical, which is called size zero. It is not formally standardised. Note that the last is typically longer than the foot heel to toe length by 12 to 23 in or 1+ 12 to 2 barleycorns, so to determine the shoe size based on actual foot length one must add 2 barleycorns.

A child's size zero is equivalent to 4 inches (a hand = 12 barleycorns = 10.16 cm), and the sizes go up to size 13+ 12 (measuring 25+ 12 barleycorns, or 8+ 12 inches (21.59 cm)). Thus, the calculation for a children's shoe size in the UK is:

child shoe size (barleycorns) = 3 × last length (in) − 12

equivalent to:

child shoe size (barleycorns) ≈ 3 × foot length (in) − 10.

An adult size one is then the next size up (26 barleycorns, or 8+ 23  in (22.01 cm)) and each size up continues the progression in barleycorns.[2] The calculation for an adult shoe size in the UK is thus:

adult shoe size (barleycorns) = 3 × last length (in) − 25

equivalent to:

adult shoe size (barleycorns) ≈ 3 × foot length (in) − 23.

Although this sizing standard is nominally for both men and women, some manufacturers use different numbering for women's UK sizing.

In Australia and New Zealand, the UK system is followed for men and children's footwear. Women's footwear follows the US sizings.

In Mexico, shoes are sized either according to the foot length they are intended to fit, in cm, or alternatively to another variation of the barleycorn system, with sizes calculated approximately as:

adult shoe size (barleycorns) = 3 × last length (in) − 25+ 12

equivalent to:

adult shoe size (barleycorns) ≈ 3 × foot length (in) − 23+ 12 .
Note: UK Shoe size and Indian shoe sizes are same.

United States [edit]

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This article is missing information about details on athletic scale. Please expand the article to include this information. Further details may exist on the talk page. (April 2019)

In the United States and Canada, there are different systems that are used concurrently. The size indications are usually similar but not exactly equivalent especially with athletic shoes at extreme sizes. The most common is the customary, described in more detail below, which for men's shoes is one size shorter than the UK equivalent, making a men's 13 in the US the same size as a men's 12 in the UK.

Customary [edit]

The traditional system is similar to British sizes but start counting at one rather than zero, so equivalent sizes are one greater.

The calculation for a male shoe size in the United States is:

male shoe size (barleycorns) = 3 × last length (in) − 24

equivalent to:

male shoe size (barleycorns) ≈ 3 × foot length (in) − 22.

In the "standard" or "FIA" (Footwear Industries of America) scale, women's sizes are men's sizes plus 1 (so a men's 10+ 12 is a women's 11+ 12 ):

female shoe size (barleycorns) = 3 × last length (in) − 23

equivalent to:

female shoe size (barleycorns) ≈ 3 × foot length (in) − 21.

There is also the "common" scale, where women's sizes are equal to men's sizes plus 1+ 12 .

Children's [edit]

Children's sizes are equal to men's sizes plus 12+ 13 . Children's sizes do not differ by gender even though adults' do:

child shoe size (barleycorns) = 3 × last length (in) − 11 23

equivalent to:

child shoe size (barleycorns) ≈ 3 × foot length (in) − 16 13 .

Children's shoe stores in the United States use a sizing scheme which ends at 13, after which the adult range starts at 1. Alternatively, a scale running from K4 to K13 and then 1 to 7 is in use.[3] K4 to K9 are toddler sizes, K10 to K13 are pre-school and 1 to 7 are grade school sizes.

Brannock Device [edit]

A slightly different sizing method is based on the Brannock Device, a measuring instrument invented by Charles F. Brannock in 1925 and now found in many shoe stores. The formula used by the Brannock device assumes a foot length 23  in (1.7 cm) less than the length of the last; thus, men's size 1 is equivalent to a foot's length of 7+ 23  in (19.47 cm):[4]

male shoe size (Brannock) = 3 × foot length (in) − 22. [5]

Women's sizes are one size up:

female shoe size (Brannock) = 3 × foot length (in) − 21.[5]

The device also measures the length of the arch, or the distance between the heel and the ball (metatarsal head) of the foot. For this measurement, the device has a shorter scale at the instep of the foot with an indicator that slides into position. If this scale indicates a larger size, it is taken in place of the foot's length to ensure proper fitting.[6]

For children's sizes, additional wiggle room is added to allow for growth.[6]

The device also measures the width of the foot and assigns it designations of AAA, AA, A, B, C, D, E, EE, or EEE. The widths are 3/16 inches apart and differ by shoe length.[4]

Some shoe stores and medical professionals use optical 3D surface scanners to precisely measure the length and width of both feet and recommend the appropriate shoe model and size.[7]

UK and US shoe sizes
Last length Foot length/Brannock UK sizes US & Canada sizes
Inches Millimetres Inches Millimetres Children's Adult's Children's Men's Women's
5 127.0 4+ 13 110.06 3
5+ 118 128.41 4+ 718 111.47 3+ 12
5+ 16 131.23 4+ 12 114.3 3+ 12
5+ 29 132.64 4+ 59 115.71 4
5+ 13 135.46 4+ 23 118.53 4
5+ 718 136.87 4+ 1318 119.94 4+ 12
5+ 12 139.7 4+ 56 122.76 4+ 12
5+ 59 141.1 4+ 89 124.17 5
5+ 23 143.93 5 127.0 5
5+ 1318 145.34 5+ 118 128.41 5+ 12
5+ 56 148.16 5+ 16 131.23 5+ 12
5+ 89 149.57 5+ 29 132.64 6
6 152.4 5+ 13 135.46 6
6+ 118 153.81 5+ 718 136.87 6+ 12
6+ 16 156.63 5+ 12 139.7 6+ 12
6+ 29 158.04 5+ 59 141.1 7
6+ 13 160.86 5+ 23 143.92 7
6+ 718 162.27 5+ 1318 145.34 7+ 12
6+ 12 165.1 5+ 56 148.16 7+ 12
6+ 59 166.51 5+ 89 149.57 8
6+ 23 169.3 6 152.4 8
6+ 1318 170.74 6+ 118 153.81 8+ 12
6+ 56 173.56 6+ 16 156.63 8+ 12
6+ 89 174.97 6+ 29 158.04 9
7 177.8 6+ 13 160.86 9
7+ 118 179.21 6+ 718 162.27 9+ 12
7+ 16 182.03 6+ 12 165.1 9+ 12
7+ 29 183.4 6+ 59 166.51 10
7+ 13 186.26 6+ 23 169.3 10
7+ 718 187.67 6+ 1318 170.74 10+ 12
7+ 12 190.5 6+ 56 173.56 10+ 12
7+ 59 191.91 6+ 89 174.97 11
7+ 23 194.73 7 177.8 11
7+ 1318 196.14 7+ 118 179.21 11+ 12
7+ 56 198.96 7+ 16 182.03 11+ 12
7+ 89 200.37 7+ 29 183.4 12
8 203.2 7+ 13 186.26 12 1
8+ 118 204.61 7+ 718 187.67 12+ 12
8+ 16 207.43 7+ 12 190.5 12+ 12 1+ 12
8+ 29 208.84 7+ 59 191.91 13
8+ 13 211.6 7+ 23 194.73 13 0 1 2
8+ 718 213.07 7+ 1318 196.14 13+ 12
8+ 12 215.9 7+ 56 198.96 13+ 12 12 1+ 12 2+ 12
8+ 23 220.13 8 203.2 1 2 3
8+ 56 224.36 8+ 16 207.43 1+ 12 2+ 12 3+ 12
9 228.6 8+ 13 211.6 2 3 4
9+ 16 232.83 8+ 12 215.9 2+ 12 3+ 12 4+ 12
9+ 13 237.06 8+ 23 220.13 3 4 5
9+ 12 241.3 8+ 56 224.36 3+ 12 4+ 12 5+ 12
9+ 23 245.53 9 228.6 4 5 6
9+ 56 249.76 9+ 16 232.83 4+ 12 5+ 12 6+ 12
10 254.0 9+ 13 237.06 5 6 7
10+ 16 258.23 9+ 12 241.3 5+ 12 6+ 12 7+ 12
10+ 13 262.46 9+ 23 245.53 6 7 8
10+ 12 266.7 9+ 56 249.76 6+ 12 7+ 12 8+ 12
10+ 23 270.93 10 254.0 7 8 9
10+ 56 275.16 10+ 16 258.23 7+ 12 8+ 12 9+ 12
11 279.4 10+ 13 262.46 8 9 10
11+ 16 283.63 10+ 12 266.7 8+ 12 9+ 12 10+ 12
11+ 13 287.86 10+ 23 270.93 9 10 11
11+ 12 292.1 10+ 56 275.16 9+ 12 10+ 12 11+ 12
11+ 23 296.3 11 279.4 10 11 12
11+ 56 300.56 11+ 16 283.63 10+ 12 11+ 12 12+ 12
12 304.8 11+ 13 287.86 11 12 13
12+ 16 309.03 11+ 12 292.1 11+ 12 12+ 12 13+ 12
12+ 13 313.26 11+ 23 296.3 12 13 14
12+ 12 317.5 11+ 56 300.56 12+ 12 13+ 12 14+ 12
12+ 23 321.73 12 304.8 13 14 15
Inches Millimetres Inches Millimetres Children's Adult's Children's Men's Women's
Last length Foot length/Brannock UK sizes US sizes

Continental Europe [edit]

In the Continental European system, the shoe size is the length of the last, expressed in Paris points, for both sexes and for adults and children alike. Note that the last is typically longer than the foot heel to toe length by 43 to 53 cm or 2 to 2+ 12 Paris points, so to determine the shoe size based on actual foot length one must add 2 Paris points.

Because a Paris point is 23 of a centimetre, the formula is as follows:

shoe size (Paris points) = 32 × last length (cm)

equivalent to:

shoe size (Paris points) ≈ 32 × foot length (cm) + 2.

The Continental European system is used in Austria, Belgium, Denmark, France, Germany,[8] Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Spain,[9] Sweden, Switzerland, and most other continental European countries. It is also used in Middle Eastern countries (such as Iran), Brazil—which uses the same method but subtracts 2 from the final result, in effect measuring foot size instead of last size[ citation needed ]—and, commonly, Hong Kong. The system is sometimes described as Stich size (from Pariser Stich, the German name for the Paris point), or Stichmass size (from Stichmaß, a micrometer for internal measurements).

Mondopoint [edit]

Measurement of foot length, width and perimeter (cirсumference) as defined in the Mondopoint standard

The Mondopoint shoe length system is widely used in sports industry to size athletic shoes, ski boots, skates, and pointe ballet shoes; it was also adopted as the primary shoe sizing system in the Soviet Union,[10] Russia,[11] East Germany, China,[12] Japan, Taiwan, and South Korea, and as an optional system in United Kingdom,[13] India,[14] Mexico, and European countries. The Mondopoint system is also used by NATO and other military services.

The Mondopoint system was introduced in the 1970s by International Standard ISO 2816:1973 "Fundamental characteristics of a system of shoe sizing to be known as Mondopoint" and ISO 3355:1975 "Shoe sizes – System of length grading (for use in the Mondopoint system)".[15] ISO 9407:2019, "Shoe sizes—Mondopoint system of sizing and marking",[16] is the current version of the standard.

The Mondopoint system is based on average foot length and foot width for which the shoe is suitable, measured in millimetres. The length of the foot is measured as horizontal distance between the perpendiculars in contact with the end of the most prominent toe and the most prominent part of the heel. The width of the foot is measured as horizontal distance between vertical lines in contact with the first and fifth metatarsophalangeal joints. The perimeter of the foot is the length of foot circumference, measured with a flexible tape at the same points as foot width. The origin of the grade is zero.

The labeling typically includes foot length, followed by an optional foot width: a shoe size of 280/110 indicates a foot length of 280 millimetres (11.0 in) and width of 110 millimetres (4.3 in). Other customary markings, such as EU, UK and US sizes, may also be used.

Because Mondopoint takes the foot width into account, it allows for better fitting than most other systems. A given shoe size shall fit every foot with indicated average measurements, and those differing by no more than a half-step of the corresponding interval grid. Standard foot lengths are defined with interval steps of 5 mm for casual footwear and steps of 7.5 mm for specialty (protective) footwear. The standard is maintained by ISO Technical Committee 137 "Footwear sizing designations and marking systems."

East Asia [edit]

In Japan, mainland China, Taiwan, and South Korea, the Mondopoint system is used as defined by national standard Japanese Industrial Standards (JIS) S 5037:1998 and its counterparts Chinese National Standard (CNS) 4800-S1093:2000 and Korean Standards Association (KS) M 6681:2007.

Foot length and girth (foot circumference) are taken into account.[17] The foot length is indicated in centimetres; an increment of 5 mm is used.

The length is followed by designators for girth (A, B, C, D, E, EE, EEE, EEEE, F, G), which are specified in an indexed table as foot circumference in millimetres for each given foot length; foot width is also included as supplemental information. There are different tables for men's, women's, and children's (less than 12 years of age) shoes. Not all designators are used for all genders and in all countries. For example, the largest girth for women in Taiwan is EEEE, whereas in Japan, it is F.

The foot length and width can also be indicated in millimetres, separated by a slash or a hyphen.

Soviet Union (Russia, Commonwealth of Independent States) [edit]

Historically the Soviet Union used the European (Paris point) system, but the Mondopoint metric system was introduced in the 1980s by GOST 24382-80 "Sizes of Sport Shoes" and GOST 11373-88 "Shoe Sizes", and lately by GOST R 58149-2018. Foot lengths are aligned to 5 mm and 7.5 mm intervals.

Standard metric foot sizes can be converted to the nearest Paris point ( 23  cm) sizes using approximate conversion tables; shoes can be marked with both foot length in millimetres, as for pointe ballet shoe sizes, or last length in European Paris point sizes (although such converted Stichmass sizes typically come 12 to 1 size smaller than comparable European-made adult footwear, and up to 1+ 12 sizes smaller for children's footwear, according to ISO 19407 shoe size definitions). Optional foot width designations includes narrow, normal (medium or regular), and wide grades.

Infant sizes start at 16 (95 mm) and pre-school kids at 23 (140 mm); schoolchildren sizes span 32 (202.5 mm) to 40 (255 mm) for girls and 32 to 44 (285 mm) for boys. Adult sizes span 33 (210 mm) to 44 for women and 38 (245 mm) to 48 (310 mm) for men.

GOST 11373-88 shoe sizes (5 mm and 7.5 mm steps) Children's
Mondopoint/foot
length (mm)
Stich size
95 16
100 16+ 12
105 17
110 18
115 19
120 19+ 12
125 20
130 21
135 22
140 22+ 12
145 23
150 24
155 25
160 25+ 12
165 26
170 27
172.5 27+ 12
175 28
180 180 28+ 12
185 29
187.5 29+ 12
190 30
195 195 31
200 31+ 12
Adults'
Mondopoint/foot
length (mm)
Stich size
202.5 32
205
210 210 33
215 34
217.5 34+ 12
220
225 225 35
230 36
232.5 36+ 12
235 37
240 240 37+ 12
245 38
247.5 38+ 12
250 39
255 255 40
260 40+ 12
262.5 41
265
270 270 42
275 43
277.5
280 43+ 12
285 285 44
290 45
292.5 45+ 12
295 46
300 300 46+ 12
305 47
307.5 47+ 12
310 48

ISO 19407 and shoe size conversion [edit]

ISO/TS 19407:2015 Footwear - Sizing - Conversion of sizing systems is a technical specification from International Standards Organisation. It contains three conversion tables (for adults and children) which feature major shoe sizing systems (e.g., Mondopoint, United States, European, United Kingdom, China, and Japan).[18] Each table is based on actual foot length measurement (insole) in millimetres; typical last length ranges are also included.

The standard includes conversion tables for Mondopoint (USSR/Russian/Chinese/Japanese/Korean systems) using length steps of 5 mm and 7.5 mm, European Paris point system, and UK 13 -inch system. The standard has also been adopted as Russian GOST R 57425-2017.

The standard is maintained by ISO/TC 137, which also developed ISO/TS 19408:2015 Footwear - Sizing - Vocabulary and terminology; currently in development are companion standards ISO/TS 19409 "Footwear - Sizing - Measurement of last dimensions" and ISO/TS 19410 "Footwear - Sizing - Inshoe measurement".

Difficulties [edit]

Ambox current red.svg

This section needs to be updated. The reason given is: ISO 19407:2015 specifies shoe size conversion based on foot length. Please help update this article to reflect recent events or newly available information. (April 2018)

Differences between various shoe size tables, makers' tables or other tables found on the Web are usually due to the following factors:

  • The systems are not fully standardised. Differences between shoes from different makers, which are due to different methods of measuring the shoes, different manufacturing processes, or different allowances[1] are sometimes related to different countries. A "German" size may then differ from a "French" size, although both countries use the Continental European system.
  • Different widths may have the result that for wide feet, a shoe multiple sizes larger (and actually too long) may be required. This may also result in different size indications, especially if different typical widths are attributed to different sizing systems or countries.
  • Some tables for children take future growth into account. The shoe size is then larger than what would correspond to the actual length of the foot.[6]
  • An indication in centimetres or inches can mean the length of the foot or the length of the shoe's inner cavity. This relation is not constant but varies due to different amounts of wiggle room required for different sizes of shoes.
  • There are several US systems, which differ substantially for sizes far above or below medium sizes.

Further, some tables available on the Web simply contain errors. For example, the wiggle room or different zero point is not taken into account, or tables based on different US systems (traditional and athletic) are simply combined although they are incompatible.

Moreover, though the ISO had released a technical specification (ISO/TS 19407:2015) for converting shoe sizes across various local sizing systems, the organization noted that the problem of converting shoe sizes accurately has yet to be fully resolved. At best, its own published standards for shoe sizes conversions only serve as "a good compromise solution" for shoe-buyers.[18] [19]

The following tables indicate theoretical sizes calculated from the standards and information given above.

  • Unofficial adult shoe sizes comparison

  • Unofficial children's shoe sizes comparison

Shoe sizing [edit]

The adult shoe sizes are calculated from typical last length, which is converted from foot length in mm by adding an allowance of two shoe sizes:

EUR shoe size = L + 2 × 6.6 6 ¯ 6.6 6 ¯ = 3 20 × L + 2 {\displaystyle {\text{EUR shoe size}}={\frac {L+2\times {6.6{\bar {6}}}}{6.6{\bar {6}}}}={\frac {3}{20}}\times {L}+2}

UK shoe size = L + 2 × 8.4 6 ¯ 8.4 6 ¯ 25 = 3 25.4 × L 23 {\displaystyle {\text{UK shoe size}}={\frac {L+2\times {8.4{\bar {6}}}}{8.4{\bar {6}}}}-25={\frac {3}{25.4}}\times {L}-23}

where L is foot length in mm.

Direct conversion between adult UK, Continental European and Mondopoint shoe size systems is derived as follows:

L = 20 3 × ( EUR shoe size 2 ) = 25.4 3 × ( UK shoe size + 23 ) {\displaystyle L={\frac {20}{3}}\times \left({\text{EUR shoe size}}-2\right)={\frac {25.4}{3}}\times \left({\text{UK shoe size}}+23\right)}

EUR shoe size = 1.27 × ( UK shoe size + 23 ) + 2 {\displaystyle {\text{EUR shoe size}}={1.27\times \left({\text{UK shoe size}}+23\right)}+2}

UK shoe size = EUR shoe size 2 1.27 23 {\displaystyle {\text{UK shoe size}}={\frac {{\text{EUR shoe size}}-2}{1.27}}-23}

Exact foot lengths may contain repeating decimals because the formulas include division by 3; in practice, approximate interval steps of 6.67 mm and 8.47 mm are used, then resulting lengths are rounded up to 0.1 mm, and shoe sizes are rounded to either 12 size point or closest matching Mondopoint size.

Adults' shoe sizes
Foot length Mondopoint EUR UK* Typical last length range
mm cm inch 5.0 mm 7.5 mm 6.6 mm 8.46 mm mm
210.0 21 210 210 33+ 12 217 229
211.6 8+ 13 2 219 231
213.3 21+ 13 34 220 232
215.0 21+ 12 215 222 234
215.9 8+ 12 2+ 12 223 235
216.6 21+ 23 34+ 12 224 236
217.5 21+ 34 217.5 225 237
220.0 22 220 35 227 239
220.13 8+ 23 3 227 239
223.3 22+ 13 35+ 12 230 242
224.36 8+ 56 3+ 12 231 243
225.0 22+ 12 225 225 232 244
226.6 22+ 23 36 234 246
228.6 9 4 236 248
230.0 23 230 36+ 12 237 249
232.5 23+ 14 232.5 240 252
232.83 9+ 16 4+ 12 240 252
233.3 23+ 13 37 240 252
235.0 23+ 12 235 242 254
236.6 23+ 23 37+ 12 244 256
237.06 9+ 13 5 244 256
240.0 24 240 240 38 247 259
241.3 9+ 12 5+ 12 248 260
243.3 24+ 13 38+ 12 250 262
245.0 24+ 12 245 252 264
245.53 9+ 23 6 253 265
246.6 24+ 23 39 254 266
247.5 24+ 34 247.5 255 267
249.76 9+ 56 6+ 12 257 269
250.0 25 250 39+ 12 257 269
253.3 25+ 13 40 260 272
254.0 10 7 261 273
255.0 25+ 12 255 255 262 274
256.6 25+ 23 40+ 12 264 276
258.23 10+ 16 7+ 12 265 276
260.0 26 260 41 267 279
262.46 10+ 13 8 269 281
262.5 26+ 14 262.5 270 282
263.3 26+ 13 41+ 12 270 282
265.0 26+ 12 265 272 284
266.6 26+ 23 42 274 286
266.7 10+ 12 8+ 12 274 286
270.0 27 270 270 42+ 12 277 289
270.93 10+ 23 9 278 290
273.3 27+ 13 43 280 292
275.0 27+ 12 275 282 294
275.16 10+ 56 9+ 12 282 294
276.6 27+ 23 43+ 12 284 296
277.5 27+ 34 277.5 285 297
279.4 11 10 286 298
280.0 28 280 44 287 299
283.3 28+ 13 44+ 12 290 302
283.63 11+ 16 10+ 12 291 303
285.0 28+ 12 285 285 292 304
286.6 28+ 23 45 294 306
287.86 11+ 13 11 295 307
290.0 29 290 45+ 12 297 309
292.1 11+ 12 11+ 12 299 311
292.5 29+ 14 292.5 300 312
293.3 29+ 13 46 300 312
295.0 29+ 12 295 302 314
296.3 11+ 23 12 303 315
296.6 29+ 23 46+ 12 304 316
300.0 30 300 300 47 307 319
300.56 11+ 56 12+ 12 308 320
303.3 30+ 13 47+ 12 310 322
304.8 12 13 312 324
305.0 30+ 12 305 312 324
306.6 30+ 23 48 314 326
307.5 30+ 34 307.5 315 327
309.03 12+ 16 13+ 12 316 328
310.0 31 310 48+ 12 317 329
313.26 12+ 13 14 320 332
313.3 31+ 13 49 320 332
315.0 31+ 12 315 315 322 334
316.6 31+ 23 49+ 12 324 336
317.5 12+ 12 14+ 12 325 337
320.0 32 320 50 327 339
321.73 12+ 23 15 329 341
mm cm inch 5.0 mm 7.5 mm 6.6 mm 8.46 mm mm
Foot length Mondopoint EUR UK* Typical last length range
*UK sizes listed are nominally unisex, but women's UK sizes may vary.

Children sizes are approximations converted from foot length by adding an 8% allowance at the toes and matching the result to the closest practically available last size.

Children's shoe sizes
Foot length, mm Mondopoint EUR UK US Typical last length range, mm
120 120 19+ 12 3+ 12 4 130 136
123 125 20 4 4+ 12 133 139
127 20+ 12 4+ 12 5 137 143
130 130 21 5 5+ 12 140 146
133 21+ 12 5+ 12 6 143 149
135 135 22 147 153
138 140 22+ 12 6 6+ 12 150 156
142 23 6+ 12 153 156
146 145 23+ 12 7 7+ 12 157 165
148 24 160 166
150 150 24+ 12 7+ 12 8 163 169
154 155 25 8 8+ 12 167 173
157 25+ 12 8+ 12 9 170 176
160 160 26 9 9+ 12 173 179
164 26+ 12 177 183
166 165 27 9+ 12 10 180 186
169 170 27+ 12 10 10+ 12 183 189
173 28 10+ 12 11 187 193
176 175 28+ 12 11 11+ 12 190 196
179 180 29 11+ 12 12 193 199
182 29+ 12 197 203
185 185 30 12 12+ 12 200 206
188 30+ 12 12+ 12 13 203 209
192 190 31 13 13+ 12 207 213
195 195 31+ 12 13+ 12 1 210 216
198 32 213 219
200 200 32+ 12 1 1+ 12 217 223
204 205 33 1+ 12 2 220 226
207 33+ 12 223 229
210 210 34 2 2+ 12 227 233
213 34+ 12 2+ 12 3 230 236
217 215 35 3 3+ 12 233 239
220 220 35+ 12 3+ 12 4 237 243
224 36 240 246
226 225 36+ 12 4 4+ 12 243 249
230 230 37 4+ 12 5 247 253
232 37+ 12 250 256
236 235 38 5 253 259
Foot length, mm Mondopoint EUR UK US Typical last length range, mm

Size conversion [edit]

The standard also includes quick conversion tables for adult shoe sizes; they provide matching sizes for shoes marked in Mondopoint, European, and UK systems. Converted values are rounded to a larger shoe size to increase comfort.

Mondopoint conversion
Mondo EUR UK US men US women
215 34 2+ 12 3+ 12 4+ 12
220 35 3 4 5
225 35+ 12 3+ 12 4+ 12 5+ 12
230 36+ 12 4 5 6
235 37 4+ 12 5+ 12 6+ 12
240 38 5+ 12 6+ 12 7+ 12
245 38+ 12 6 7 8
250 39+ 12 6+ 12 7+ 12 8+ 12
255 40 7 8 9
260 41 7+ 12 8+ 12 9+ 12
265 41+ 12 8+ 12 9+ 12 10+ 12
270 42+ 12 9 10 11
275 43 9+ 12 10+ 12 11+ 12
280 44 10 11 12
285 44+ 12 10+ 12 11+ 12 12+ 12
290 45+ 12 11 12 13
295 46 12 13 14
300 47 12+ 12 13+ 12 14+ 12
305 47+ 12 13 14 15
310 48+ 12 13+ 12 14+ 12 15+ 12
315 49 14 15 16
320 50 15 16 17
European shoe size conversion
EUR Mondo UK US men US women
34 215 2 3 4
34+ 12 215 2+ 12 3+ 12 4+ 12
35 220 3 4 5
35+ 12 225 3+ 12 4+ 12 5+ 12
36 225 4 5 6
36+ 12 230 4 5 6
37 235 4+ 12 5+ 12 6+ 12
37+ 12 235 5 6 7
38 240 5+ 12 6+ 12 7+ 12
38+ 12 245 5+ 12 6+ 12 7+ 12
39 245 6 7 8
39+ 12 250 6+ 12 7+ 12 8+ 12
40 255 7 8 9
40+ 12 255 7+ 12 8+ 12 9+ 12
41 260 7+ 12 8+ 12 9+ 12
41+ 12 265 8 9 10
42 265 8+ 12 9+ 12 10+ 12
42+ 12 270 9 10 11
43 275 9+ 12 10+ 12 11+ 12
43+ 12 275 9+ 12 10+ 12 11+ 12
44 280 10 11 12
44+ 12 285 10+ 12 11+ 12 12+ 12
45 285 11 12 13
45+ 12 290 11+ 12 12+ 12 13+ 12
46 295 11+ 12 12+ 12 13+ 12
46+ 12 295 12 13 14
47 300 12+ 12 13+ 12 14+ 12
47+ 12 305 13 14 15
48 305 13 14 15
48+ 12 310 13+ 12 14+ 12 15+ 12
49 315 14 15 16
49+ 12 315 14+ 12 15+ 12 16+ 12
50 320 15 16 17
United Kingdom shoe size conversion
UK Mondo EUR US men US women
2 210 34 3 4
2+ 12 215 34+ 12 3+ 12 4+ 12
3 220 35 4 5
3+ 12 225 35+ 12 4+ 12 5+ 12
4 230 36+ 12 5 6
4+ 12 235 37 5+ 12 6+ 12
5 235 37+ 12 6 7
5+ 12 240 38 6+ 12 7+ 12
6 245 39 7 8
6+ 12 250 39+ 12 7+ 12 8+ 12
7 255 40 8 9
7+ 12 260 40+ 12 8+ 12 9+ 12
8 260 41+ 12 9 10
8+ 12 265 42 9+ 12 10+ 12
9 270 42+ 12 10 11
9+ 12 275 43+ 12 10+ 12 11+ 12
10 280 44 11 12
10+ 12 285 44+ 12 11+ 12 12+ 12
11 290 45+ 12 12 13
11+ 12 290 46 12+ 12 13+ 12
12 295 46+ 12 13 14
12+ 12 300 47 13+ 12 14+ 12
13 305 47+ 12 14 15
13+ 12 310 48+ 12 14+ 12 15+ 12
14 315 49 15 16
14+ 12 320 49+ 12 15+ 12 16+ 12
15 320 50 16 17

See also [edit]

  • List of shoe styles
  • Shoes
  • Clothing sizes

References [edit]

  1. ^ a b Andersson, Bendt. "Recommendations to suppliers and manufacturers of orthopedic footwear concerning sizes of shoes and lasts" (PDF) (in Swedish). Retrieved 2009-01-06 .
  2. ^ Cairns, Warwick (2007). About the Size of It. Macmillan. ISBN978-0-230-01628-6.
  3. ^ ASICS Oceania Pty Lyd., Asics Shoe Sizes, stating "Shoe sizes on product details pages are in US shoe size"; accessed 16 January 2017
  4. ^ a b Brannock Device Co. "History". Retrieved 2009-01-06 .
  5. ^ a b Brannock Device Co. "Size Conversion Chart". Archived from the original on 2011-08-24. Retrieved 2010-04-20 . .
  6. ^ a b c Brannock Device Co. "Instructions". Retrieved 2009-01-06 .
  7. ^ Telfer S, Woodburn J (2010). "The use of 3D surface scanning for the measurement and assessment of the human foot". J Foot Ankle Res. 3: 19. doi:10.1186/1757-1146-3-19. PMC2944246. PMID 20815914.
  8. ^ German Standard DIN 66074:1975, Shoe sizes
  9. ^ Spanish Standard UNE 59850:1998, Shoes: Size designation
  10. ^ GOST 11373-88
  11. ^ GOST R 58149-2018
  12. ^ GB/T 3293:1998
  13. ^ BS 4981:1973
  14. ^ IS 8751:1978
  15. ^ R. Boughey. Size Labelling of Footwear. Journal of Consumer Studies & Home Economics. Volume 1, Issue 2. June 1977. DOI:10.1111/j.1470-6431.1977.tb00197.x
  16. ^ International Standard ISO 9407:2019, Shoe sizes—Mondopoint system of sizing and marking
  17. ^ (in Japanese) 靴のサイズ表示について・分かっているようで分かっていない話 tr. About shoe size display ... A story that seems to be known but not known Rakuten.co.jp Archived 2011-07-27 at the Wayback Machine
  18. ^ a b "ISO/TS 19407:2015 - Footwear -- Sizing -- Conversion of sizing systems". www.iso.org . Retrieved 2018-06-22 .
  19. ^ "Shoe Size Conversion: Use this EASY Tool, Size Guide + How To". BlitzResults.com. 2017-11-11. Retrieved 2018-06-22 .

External links [edit]

  • IS 8751-1 (1978): Footwear sizes in mondopoint system, Part 1: Fundamental characteristics
  • IS 8751-2 (1978): Footwear sizes in mondopoint system, Part 2: Length grading
  • Chart of US shoe widths by size

My Son Wears Size 7 Shoe Wht Size Socks

Source: https://en.wikipedia.org/wiki/Shoe_size

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