Shoe Size Calculator
Free online Shoe Size Calculator.
Calculator
How to Use
- Enter the required values
- Click Calculate to see the result
- Review the detailed output
Formula
US Men = (Foot Length in inches x 3) - 22. US Women = US Men + 1.5. EU = (Foot Length cm + 1.5) / 0.667. UK = US Men - 1. Sizes vary by brand.
Example Calculations
US to EU
Input: US Men's size 10
Result: EU 44, UK 9, Foot length: 11 inches (27.9 cm)
Women's Conversion
Input: US Women's size 8
Result: US Men's 6.5, EU 38.5, UK 5.5
Foot Measurement
Input: Foot length: 26.5 cm
Result: US Men's 8.5, EU 42, UK 7.5
About This Calculator
Free online shoe size calculator. Calculate instantly in your browser with our easy-to-use tool. No sign-up required.
Our shoe size calculator is free, easy to use, and provides instant results. All calculations are performed in your browser for privacy and speed.
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Frequently Asked Questions
Convert shoe sizes between countries?
US, UK, EU use different systems. US men 10 = UK 9 = EU 44.
Measure foot for size?
Trace foot on paper, measure heel to longest toe. Use larger foot. Measure at day end when swollen.
Men vs women sizes?
US women are 1.5 sizes larger than men. Women 8 = men 6.5. Width letters differ too.
Buy bigger or smaller?
Snug not tight. Half inch between longest toe and shoe end. Slightly larger is better.
Children shoe sizes?
Start at 0 (infants) to ~13.5, restart at 1 for bigger kids to ~7, then adult sizes.