Shoe Size Converter
Convert shoe sizes between US, UK, and EU systems for men, women, and kids. Get your foot length in cm and inches instantly.
US Size
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UK Size —
EU Size —
Foot Length —
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US Size
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UK Size —
EU Size —
Foot Length —
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years
Size Conversions
US Size —
UK Size —
EU Size —
JP/KR/CN Size —
Foot Measurements
Foot Length (cm) —
Foot Length (inches) —
Fit Notes
Width Note —
Wide Band Advice —
Kids Age-to-Size Guide —
How to Use This Calculator
- Enter your shoe size number and select which system it is in (US, UK, or EU).
- Select your gender (Men, Women, or Kids) — conversion offsets differ by gender.
- The calculator instantly shows the equivalent sizes in all three systems plus your foot length.
Formula
Men: EU = US + 33 | UK = US − 0.5 | Foot cm ≈ US × 0.847 + 22.86
Women: EU = US + 31 | UK = US − 2 | Foot cm ≈ US × 0.847 + 21.59
Kids: EU = US + 17 | UK = US − 0.5 | Foot cm ≈ US × 0.635 + 15.24
Example
Example: Men's US size 10:
- UK = 10 − 0.5 = 9.5
- EU = 10 + 33 = 43
- Foot length ≈ 10 × 0.847 + 22.86 = 27.3 cm / 10.7 in
Frequently Asked Questions
- For men: EU = US + 33 (e.g. US 10 = EU 43). For women: EU = US + 31 (e.g. US 8 = EU 39). For kids: EU = US + 17.
- For men, US sizes run 0.5 larger than UK (US 10 = UK 9.5). For women, US sizes run 2 larger than UK (US 8 = UK 6).
- Trace your foot on paper while standing. Measure the longest distance from heel to toe. Add 0.5–1 cm for comfort. Use our Measure Your Foot tab to convert this to sizes.
- If your feet are wide, look for shoes labeled W (wide) or 2E/4E. Avoid sizing up in length to compensate for width — it changes the fit and can cause blisters.
- No. Kids sizes (US 1–7 for little kids) are a separate scale. When a child's foot outgrows kids sizes, they typically move to a US Men's 7 = Kids 7 equivalence. Girls may transition to women's sizes at US Women's 5–6.