Foot Measurement Calculator

Quick answer:

Free foot measurement calculator: enter your foot length in cm or inches and get your shoe size in US, UK, EU, and Japan. Interactive tool with instant results.

Enter your foot length (heel to longest toe) in centimeters or inches. Get your recommended shoe size in US, UK, EU, and Japan. Measure in the evening and use the larger foot if they differ.

Foot length (cm) cm

Foot length (inches) in

How to measure

Place a piece of paper against a wall on a hard floor. Stand with your heel touching the wall and mark the tip of your longest toe. Measure from wall to mark in cm. See our How to Measure Your Feet guide and Printable Foot Measuring Sheet.

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Common questions

How should I use this converter?

Pick your region and size, then read the equivalents. When in doubt, measure in centimeters and compare to the brand chart.

Why do sizes differ between countries?

Each region uses its own scale; mapping through foot length (cm) reduces error.

More on Foot Measurement Calculator

See linked guides on this site for measurement tips and regional differences.

Data sources

ISO and regional footwear sizing references (length-based mapping)
Published brand size charts (e.g. Nike, Adidas) for cross-checks—not endorsements
International measurement and apparel sizing studies (public summaries)

Why Sizes May Vary

Shoe and clothing sizes can vary between brands due to manufacturing differences, materials, and regional sizing standards.

Frequently Asked Questions

What is EU 42 in US shoe size?

EU 42 typically converts to US men's size 9 and US women's size 10.5, depending on brand and width. Use any converter on this page when available.

Are EU and US shoe sizes the same?

No. The EU sizing system and US shoe sizing scale use different scales. International shoe size conversion is most reliable when you anchor to foot length in cm.