How to convert sneaker sizes: US, MX, EU and centimeters

Buying sneakers online means juggling different sizing systems: US, MX, EU and centimeters. A conversion mistake is the number one reason for exchanges and returns. This guide keeps you from missing.

The most reliable method: measure in centimeters

US/MX/EU labels can vary from brand to brand, but a centimeter is always a centimeter. That's why the safest method is to measure your foot and look up that number in cm:

• Stand on a sheet of paper with your heel against the wall.
• Mark the tip of your longest toe and measure from the wall.
• Do it at the end of the day, wearing the socks you'll actually have on.
• Add 0.5-1 cm of wiggle room for a comfortable fit.

Approximate conversions

As a general reference for adults (always double-check the chart on each product page):

• US 7 ≈ MX 25 ≈ EU 40 ≈ 25 cm
• US 8 ≈ MX 26 ≈ EU 41 ≈ 26 cm
• US 9 ≈ MX 27 ≈ EU 42.5 ≈ 27 cm
• US 10 ≈ MX 28 ≈ EU 44 ≈ 28 cm
• US 11 ≈ MX 29 ≈ EU 45 ≈ 29 cm

These conversions are approximate: every model and brand can run a little differently. For exact numbers, use our official size guide.

Watch out for how each model fits

Converting your size correctly isn't enough: every silhouette fits differently. A Yeezy Boost 350 calls for going up half a size, while a Nike Air Force 1 calls for going down. Check the model-specific guide for the sneakers you're eyeing before you buy.

Before you check out

Always check the chart on the product page and the sizes available in real time. Start browsing by model or brand in the full catalog.

Sizing and fit info is a general guideline and may vary by model and foot type. Always double-check the measurements before you buy.