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Shoes for women, men or children
Please indicate whether the shoe size conversion is to be made for women's, men's or children's shoes. The European size
system and the Mondopoint system do not make any difference in this case for the calculation of shoe sizes. However, in the
UK and US size systems, the sizes for children and adults differ. In the US system, different sizes are also calculated for
women and men.
Your size
Please select the shoe size you know and indicate it. You can choose from the following shoe size systems: EU shoe sizes,
UK shoe sizes, US shoe sizes and Mondopoint shoe sizes. Combined with the above selection option for women's shoe sizes,
men's shoe sizes and children's shoe sizes, this gives you the contents of different size charts for shoes. Meanwhile,
the calculator uses the ISO 19407 specification.
EU sizes correspond to the usual "German", "French" or "Italian" shoe sizes. They apply in continental Europe, except in
Great Britain. UK sizes are used in Great Britain (United Kingdom). Instead of centimetres, inches are the basic unit of
measurement for shoe sizes. US sizes are also based on inches for length. Since these start at a different specific foot
length than the UK sizes, they differ accordingly. Mondopoint sizes are the official size unit for shoes in Russia, China,
Japan and many Southeast Asian countries. This system is commonly used worldwide in sports, such as
ski boots. Likewise, it is widely used in the military.
Further information on the individual size systems can be found by clicking on the info buttons in the results window of
the Shoe Size Calculator.
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The allocation of shoe sizes and the different size systems does not make it easy to reliably convert shoe sizes and create realistic shoe size tables.
Why is it so difficult to calculate shoe size?
Shoe sizes and shoe size charts have historically evolved
Over the centuries, different methods and ways of working have developed in the shoemaking trade. On the one hand, there are
different units of measurement for length (i.e., inches in England and America and centimetres and millimetres in continental
Europe). In addition, there are different zero points for shoe sizes in England and America. In America, these are also
differentiated between men and women. While in continental Europe, children's shoe sizes merge seamlessly into adult shoe
sizes. In England and America, there are different shoe size tables for women, men and children.
Furthermore, different reference sizes are used to calculate shoe sizes. While some manufacturers use the length of the last
used to make the shoe to determine the shoe size, other manufacturers use the interior length of the shoe, which should be
10 to 20 mm longer than the foot length, depending on the shoe type. In the meantime, many have switched to the average foot
length as a reference value (i.e., as the basis for calculating shoe sizes and shoe size tables).
ISO specification as the basis for the shoe size calculation and the shoe size tables
The Shoe Size Converter uses the ISO specification to convert shoe sizes: ISO (International Organization for Standardization)
is the independent international organization and develop international standards in almost all fields. With ISO/TS 19407:2015(E),
the ISO developed the technical specification for the conversion of shoe size systems. The aim of this specification is to
harmonise the historically developed different shoe size systems and the conversion of shoe sizes to an international standard.
The ISO specification sets the foot length in cm (instead
of interior length or last length) as the basis for all calculations of shoe sizes and size tables. In addition to foot length
as a reference value, toe clearance is also standardised and a corresponding conversion formula is derived for each of the most
important shoe size systems. For children's shoe sizes, special regulations apply, especially for toe clearance. ISO/TS 19407:2015(E)
is a specification that is intended to become an international standard as soon as development is sufficiently advanced.
Try on and test shoes
The shoe size conversion calculator implements the ISO specification. However, this does not yet constitute a binding
international standard. As described, this standard is still missing today due to the size systems that have grown
historically over many years and have neither been formalised nationally nor internationally. A direct one-on-one conversion
into whole or half sizes is only possible by rounding because of the differences between inches and centimetres.
Therefore, there is no exact solution. Most especially with
sport shoes such as
adidas,
Nike,
Puma or
Vans,
the sizes differ. The ISO specification and thus the calculation results and shoe size tables of the converter offer a
theoretical calculation method and thus best possible compromise for calculating the correct shoe size for consumers.
It is not only the different and partially standardised size systems that cause problems, but there are also factors
such as:
- Different manufacturers' deviations due to different measuring methods, manufacturing processes and tolerances.
- Different shoe widths.
- Some shoe size tables already take into account an additional margin for the growth of the feet in children's sizes, while others do not.
- Depending on the shoe type, length specifications partly refer to the foot length and partly to the interior length of the shoe.
- There are several common US systems (some of which are proprietary) that vary widely.
- Many tables and specifications of certain manufacturers available on the internet contain errors.
- Sports shoes, in particular, often run much smaller than the size indicated. For example, this is the case with Nike.
Therefore, it is ultimately crucial to try on shoes or to fall back on proven shoe sizes of a manufacturer.
What other readers have also read
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On the following guide pages, you can convert the following shoe sizes into the shoe sizes of the other size systems.
Shoe size 20, Shoe size 21, Shoe size 22, Shoe size 23, Shoe size 24, Shoe size 25, Shoe size 26, Shoe size 27, Shoe size 28, Shoe size 29, Shoe size 30, Shoe size 31, Shoe size 32, Shoe size 33, Shoe size 34, Shoe size 35, Shoe size 36, Shoe size 37, Shoe size 38, Shoe size 39, Shoe size 40, Shoe size 41, Shoe size 42, Shoe size 43, Shoe size 44, Shoe size 45, Shoe size 46, Shoe size 47, Shoe size 48, Shoe size 49, Shoe size 50
Calculator ↑Contents ↑
The following size chart for shoes is based on the ISO calculation formulas for shoe sizes.
For example, since an EU size of 40 results in a US women's size of 8.924, the table is rounded to the next
possible shoe size or half size (here, US women's size of 9). This procedure is recommended by ISO to support
consumers with an accurately derived size table for shoes.
Shoe size chart for adults according to ISO specification ISO/TS 19407:2015 |
EU |
UK |
US men |
US women |
Mondopoint |
34 | 2 | 3 | 4 | 215 |
34,5 | 2,5 | 3,5 | 4,5 | 215 |
35 | 3 | 4 | 5 | 220 |
35,5 | 3,5 | 4,5 | 5,5 | 225 |
36 | 4 | 5 | 6 | 225 |
36,5 | 4 | 5 | 6 | 230 |
37 | 4,5 | 5,5 | 6,5 | 235 |
37,5 | 5 | 6 | 7 | 235 |
38 | 5,5 | 6,5 | 7,5 | 240 |
38,5 | 5,5 | 6,5 | 7,5 | 245 |
39 | 6 | 7 | 8 | 245 |
39,5 | 6,5 | 7,5 | 8,5 | 250 |
40 | 7 | 8 | 9 | 255 |
40,5 | 7,5 | 8,5 | 9,5 | 255 |
41 | 7,5 | 8,5 | 9,5 | 260 |
41,5 | 8 | 9 | 10 | 265 |
42 | 8,5 | 9,5 | 10,5 | 265 |
42,5 | 9 | 10 | 11 | 270 |
43 | 9,5 | 10,5 | 11,5 | 275 |
43,5 | 9,5 | 10,5 | 11,5 | 275 |
44 | 10 | 11 | 12 | 280 |
44,5 | 10,5 | 11,5 | 12,5 | 285 |
45 | 11 | 12 | 13 | 285 |
45,5 | 11,5 | 12,5 | 13,5 | 290 |
46 | 11,5 | 12,5 | 13,5 | 295 |
46,5 | 12 | 13 | 14 | 295 |
47 | 12,5 | 13,5 | 14,5 | 300 |
47,5 | 305 | 13 | 14 | 15 |
48 | 13 | 14 | 15 | 305 |
48,5 | 13,5 | 14,5 | 15,5 | 310 |
49 | 14 | 15 | 16 | 315 |
49,5 | 14,5 | 15,5 | 16,5 | 315 |
50 | 15 | 16 | 17 | 320 |
EU |
UK |
US men |
US women |
Mondopoint |
Size chart for adults to print out
Here, you can get the “Shoe size chart for adults” as a printable image on the road and in the shoe shop. >>
Calculator ↑Contents ↑
Basically, the European and thus, for example, the former "German", "French" and "Italian" shoe size system, does not
differentiate between children's shoe sizes and adult sizes. However, in order not to apply a mathematical surcharge
of two whole shoe sizes to small feet in the same way as to large feet in the conversion formula, the surcharge for
toe clearance for children is applied according to ISO at 8 percent of the foot length. Furthermore, the calculated
sizes are rounded to the nearest shoe size or half size in accordance with ISO to provide a well-defined table
Shoe size chart for children according to ISO specification ISO/TS 19407:2015 |
Foot length, cm |
EU |
Mondopoint |
UK |
US |
12,0 | 19,5 | 120 | 3,5 | 4 |
12,3 | 20 | 125 | 4 | 4,5 |
12,7 | 20,5 | | 4,5 | 5 |
13,0 | 21 | 130 | 5 | 5,5 |
13,3 | 21,5 | | 5,5 | 6 |
13,5 | 22 | 135 | | |
13,8 | 22,5 | 140 | 6 | 6,5 |
14,2 | 23 | | 6,5 | 7 |
14,6 | 23,5 | 145 | 7 | 7,5 |
14,8 | 24 | | | |
15,0 | 24,5 | 150 | 7,5 | 8 |
15,4 | 25 | 155 | 8 | 8,5 |
15,7 | 25,5 | | 8,5 | 9 |
16,0 | 26 | 160 | 9 | 9,5 |
16,4 | 26,5 | | | |
16,6 | 27 | 165 | 9,5 | 10 |
16,9 | 27,5 | 170 | 10 | 10,5 |
17,3 | 28 | | 10,5 | 11 |
17,6 | 28,5 | 175 | 11 | 11,5 |
17,9 | 29 | 180 | 11,5 | 12 |
18,2 | 29,5 | | | |
18,5 | 30 | 185 | 12 | 12,5 |
18,8 | 30,5 | | 12,5 | 13 |
19,2 | 31 | 190 | 13 | 13,5 |
19,5 | 31,5 | 195 | 13,5 | 1 |
19,8 | 32 | | | |
20,0 | 32,5 | 200 | 1 | 1,5 |
20,4 | 33 | 205 | 1,5 | 2 |
20,7 | 33,5 | | | |
21,0 | 34 | 210 | 2 | 2,5 |
21,3 | 34,5 | | 2,5 | 3 |
21,7 | 35 | 215 | 3 | 3,5 |
22,0 | 35,5 | 220 | 3,5 | 4 |
22,4 | 36 | | | |
22,6 | 36,5 | 225 | 4 | 4,5 |
23,0 | 37 | 230 | 4,5 | 5 |
23,2 | 37,5 | | | |
23,6 | 38 | 235 | 5 | |
Foot length, cm |
EU |
Mondopoint |
UK |
US |
As you have noticed, the size chart for shoes according to ISO leaves some fields open. Here, the official formula has
not matched. The Shoe Size Calculator also determines the corresponding rounded sizes for the missing fields and gives
you the derivation of calculation and rounding behind the respective info button of the result.
Size chart for children to print out
Here, you get the "Shoe size chart for children" as a printable image immediately and always at hand. >>