maratoolShoe Size Converter
Convert shoe, sneaker, and tennis shoe sizes between US, UK, EU, Brazil, Japan, Mexico, Australia, and cm — for men, women, and kids.
Standard uses the US Brannock scale. Sneakers uses the common convention for tennis shoes and athletic sneakers (Nike/Puma): women +1.5 over men, EU one point higher.
How we calculate shoe sizes
Every sizing system is a fixed function of one thing: your foot length. We treat foot length (in millimeters, the Mondopoint standard) as the source of truth and derive every other system from it. The formulas below are checked against the officialBrannock Devicescale — the foot measurer used in shoe stores and the de-facto US standard. The converter and the chart above are generated from the exact same math, so they never disagree.
- US men uses the barleycorn (one size = 1⁄3 inch):
US men = 3 × foot inch − 22. On the Brannock scale, a size 8 sits at exactly 10 inches of foot. - US women run one size above men for the same foot:
US women = 3 × foot inch − 21. - UK is unisex and one point below US men:
UK = 3 × foot inch − 23. Australia follows UK for men and US for women. - EU / Continental uses the Paris point (one size = 2⁄3 cm):
EU = 1.5 × foot cm + 2. On the Brannock scale, EU 41 lines up with a 26 cm foot. - Brazil follows the EU scale, two points lower:
BR = EU − 2. Mexico is barleycorn-based, about 1.5 points below US men. - Japan, centimeters, Mondopoint, inches are the physical foot length itself, just in different units.
One honest caveat: real-world brand sizing varies. We checked five athletic brands against the Brannock standard and they disagree — Nike and Puma size women 1.5 above men, while New Balance uses +1 like Brannock; their EU numbers run half a point to a point higher than the standard. TheSneakers toggle applies the common Nike/Puma convention (women +1.5, EU one point up), but it is not universal. When it matters, measure your foot and go by the centimeters. Thefull guide has the brand-by-brand comparison.
Bottom line: measure your foot in centimeters, not your guess — enter the cm above and get every size instantly. Bookmark this page as your shoe size chart for US, UK, EU, Brazil, Japan, and beyond.
What is Shoe Size?
A shoe size converter translates a shoe, sneaker, or tennis shoe size from one country’s system to another — US, UK, EU, Brazil, Japan, Mexico, Australia, and centimeters. It works because every system is a fixed function of foot length, so the same foot maps to a predictable number in each. Enter a size you know and read the rest, and switch to the Sneakers fit for athletic-brand (Nike/Puma) sizing.
How to use
- Choose a category — men, women, or kids.
- Pick the system you already know (US, UK, EU, cm, etc.) and type your size.
- Read every other size in the result cards, and use the full chart below to compare.
Frequently asked questions
How do I convert my US shoe size to EU?
Pick your category, select "US" as the source, and type your size — the EU equivalent appears instantly along with UK, Brazil, Japan, and centimeters.
Is a US shoe size the same as a UK size?
No. For men a US size runs about one size larger than the UK size (US 9 ≈ UK 8). Both use the barleycorn scale but start from a different origin.
How do I find my shoe size from foot length in cm?
Measure heel-to-toe in centimeters, select "cm" as the source, and enter it. Measuring your foot is the most reliable way to size shoes, since brand numbering varies.
Are men and women shoe sizes different?
For US and Australian sizing yes — on the Brannock scale a women’s US size is one point higher than a man’s for the same foot (men’s 8 = women’s 9). UK, EU, Brazil, Japan, and cm are unisex. Some athletic brands use a 1.5-size offset instead.
Last updated
Powered by maratool