Shoe Size Calculator
Free Shoe Size Calculator for health & fitness. Enter your measurements for personalized results with clear explanations and reference ranges.
Formula
EU ≈ US + 33 (men) | EU ≈ US + 31 (women)
Approximate formulas for conversion. Actual sizes vary by brand. Use foot length in cm for most accurate sizing.
Worked Examples
Example 1: US to EU Conversion
Problem:Convert men's US size 10 to EU.
Solution:Using conversion chart:\nUS 10 (men's) = EU 43\n\nAlternative formula:\nEU ≈ US + 33 = 43\n\nActual may vary by brand.
Result:EU 43
Example 2: Foot Measurement
Problem:Foot measures 26.5 cm. What size for women?
Solution:26.5 cm is between sizes:\n26 cm = US 9\n27 cm = US 10\n\nRound up for comfort:\nRecommend: US 10 / EU 40
Result:US 10 (Women's)
Example 3: UK to US
Problem:Have UK 8 men's shoes. What US size?
Solution:US men's = UK + 0.5\nUS = 8 + 0.5 = 8.5\n\nOr use chart:\nUK 8 ≈ US 8.5 / EU 42
Result:US 8.5
Frequently Asked Questions
How do I measure my foot for shoe size?
Stand on paper, trace your foot, measure from heel to longest toe in cm. Add 0.5-1 cm for comfort. Measure both feet—use the larger one. Measure in the afternoon when feet are largest.
Should I size up or down between sizes?
Generally size up. It's easier to add insoles than stretch shoes. Consider the shoe type: athletic shoes need more room; dress shoes can be snugger. Account for socks you'll wear.
What is shoe width?
Width runs from AAA (narrowest) through D/M (medium) to EEE (widest). Men's D = standard. Women's B = standard. If shoes feel tight across the ball, you may need wider width.
Do feet change size over time?
Yes. Feet can grow wider and longer with age, weight changes, and pregnancy. Measure yearly. Many adults are wearing sizes too small from decades-old measurements.