How to Measure for Size
Get the one measurement that works in every country — then convert it to any system.
Every reliable size conversion starts from one number that doesn't change between countries: the length of your foot. Sizing systems disagree, brands cut differently, and labels lie — but 26 cm of foot is 26 cm of foot everywhere. Measure it once and you can shop any system with confidence.
Measuring your foot (2 minutes)
Do it at the end of the day
Feet swell through the day and while standing. Measure when they're at their largest so shoes don't pinch by evening.
Heel to a wall, weight on
Stand on paper with your heel against a wall and your weight on the foot — your foot lengthens when loaded.
Mark the longest toe
It isn't always the big toe. Mark the paper at the very tip.
Measure both feet, use the larger
Most people have one foot up to half a size bigger. Always fit the larger one.
Add a little room
Charts are built around shoe length, not bare-foot length, so most allow ~1 cm. If you're between sizes, size up.
Prefer a guide you can stand on? Print our free foot ruler — print at 100% and check the calibration bar.
Then convert it
Use the shoe size converter for footwear, the ring size converter for rings, or the clothing converter for apparel. Each one is anchored to the same real measurements and tells you where common brands run small or large.