Shoe Size Conversion Calculator
Convert between international shoe sizing systems with accurate measurements
Shoe Size Conversion Calculator
Please provide a shoe or foot size below to convert to the shoe sizes of other countries. Our calculator converts between US/Canada, UK/India, EU, Japan/Mexico, and China sizing systems.
👟 Size Conversion
📊 Conversion Results
25.0 cm
250 mm
📚 Understanding Shoe Size Conversion
Global Standards
Different countries use different shoe sizing systems. The US/Canada, UK, EU, and Asian systems all have unique measurement methods and scales.
Foot Measurement
Shoe sizes are primarily based on foot length, but width and other factors also affect fit. Always measure your feet for the most accurate sizing.
Brand Variations
Even within the same sizing system, different manufacturers may have slight variations. It's always best to try shoes on when possible.
Shoe Size Conversion Formulas
U.S. and Canada
Women's: shoe size ≈ 3L - 21
Men's: shoe size ≈ 3L - 22
where L is foot length in inches
UK/India
Adult: shoe size ≈ 3L - 23
where L is foot length in inches
EU
shoe size = (3/2)L + 2
where L is foot length in centimeters
Japan/Mexico & China
Japan/Mexico: shoe size = L
China: shoe size = 2L - 10
where L is foot length in centimeters
How to Measure Your Foot
- Time of day: Measure your feet later in the day when they are naturally larger due to swelling.
- Both feet: Measure both feet and use the measurement from your larger foot.
- Standing position: Measure while standing with your full weight on the foot.
- Proper technique: Measure from the heel to the longest toe in a straight line.
- Width matters: Consider foot width as well as length for the best fit.