Should I use this instead of a brand size chart?

No. Use this as a quick estimate, then confirm with the specific brand size chart before buying.

👟 Shoe size converter

EU 40 shoe size in cm

By Omellody Editorial Team · Updated May 29, 2026

EU 40 shoe size is often listed near 25.0 cm foot length, but brands vary. Compare US/UK estimates and measure your foot safely.

Quick estimate

EU 40 ≈ 25.0 cm foot length

This is a shopping estimate, not a medical or brand-guaranteed measurement.

Fit note: Shoe sizing varies by brand, last shape, socks and width. Measure both feet and confirm the retailer’s official size chart before ordering.

Nearby EU sizes

EU size	Approx foot length	Best next step
EU 39	24.5 cm	Check brand chart
EU 40	25.0 cm	Check brand chart
EU 41	25.5 cm	Check brand chart

How to measure

Stand on paper, mark heel and longest toe, then measure the distance in centimeters. Use the larger foot if your feet differ.

Useful related tools

Shoe size converter · cm to inches · all converters

FAQ

What is EU 40 shoe size in cm?

EU 40 is commonly approximated around 25.0 cm foot length, but the exact fit depends on the brand.

Can I rely on this for every shoe?

No. Treat it as a quick conversion and verify against the brand’s official chart before purchase.