Shoe Size Converter (US, UK, EU)
Convert shoe sizes across US, UK and EU systems from your foot length, for men’s and women’s sizing — the reliable way to shop for shoes from anywhere.
Your Foot
10.0 inches
EU Size
41
US 8 · UK 7 · foot 25.5 cm
US Size
8
UK Size
7
EU Size
41
Foot Length
25.5 cm
How It Works
Shoe sizing is notoriously inconsistent — US, UK and European systems all number differently, and brands vary on top of that. The one reliable anchor is your foot length, so this converter starts there. Measure your foot from heel to longest toe in centimetres, choose men’s or women’s sizing, and it estimates your size in each system. It uses the standard relationship that each size step is about a third of an inch: US men’s size is roughly three times the foot length in inches minus 22, the EU size is about 33 above that, and UK is about one below US for men (women’s systems are offset differently). Because brands and shoe shapes differ, treat the result as a strong starting point, not an exact guarantee. Measure both feet (use the larger), do it in the evening when feet are largest, and size up if you fall between sizes.
Formula
From foot length L (cm): US (men) ≈ 3 × (L ÷ 2.54) − 22; EU ≈ US + 33; UK ≈ US − 1 (men). Sizes are rounded to the nearest half.
Frequently Asked Questions
How do I measure my foot for shoe size?
Stand on a sheet of paper, mark your heel and longest toe, and measure the distance in centimetres. Do it in the evening (feet swell during the day) and measure both feet, using the larger.
Are US and UK shoe sizes the same?
No. For men, US sizes run about one size higher than UK (a US 9 is roughly a UK 8). Women’s systems are offset differently again, which is why converting via foot length is more reliable.
How is EU shoe size related to US?
Roughly, EU size ≈ US size + 33 for men. EU sizing is based on the Paris point (about ⅔ cm) and measures the last length, so it maps closely to foot length.
Why do sizes vary between brands?
Because there is no strictly enforced standard and shoe shapes (lasts) differ. A size 9 in one brand can fit differently in another, so use foot length as your guide and try shoes on where possible.
What if I am between two sizes?
Size up. A slightly larger shoe can be adjusted with insoles or thicker socks, but a too-small shoe causes discomfort and foot problems. Also consider width, which sizing systems often ignore.