UK sizes to US sizes
Type a value in UK to get it in US instantly.
That's 1.67× as big as a basketball player’s foot — nothing on our list beats it. That fits a foot about 55.03 cm long.
Convert the other way: US to UK
What it means
How long is that foot?
Sizing is a convention, not a standard: brands differ by half a size or more. Measure your foot in centimeters and treat these as a starting point.
The math
How to convert UK to US
Each system counts differently: EU = (foot cm + 1.5) × 1.5, and US men = foot inches × 3 − 22. UK is one size below US for men, two for women.
Example: 42 UK = 43 US.
The table below uses Men’s. Switch above and the US and UK columns shift.
Every unit
Your size in every system
Tables
UK to US conversion table
| UK | US |
|---|---|
| 35 UK | 36 US |
| 36 UK | 37 US |
| 37 UK | 38 US |
| 38 UK | 39 US |
| 39 UK | 40 US |
| 40 UK | 41 US |
| 41 UK | 42 US |
| 42 UK | 43 US |
| 43 UK | 44 US |
| 44 UK | 45 US |
| 45 UK | 46 US |
| 46 UK | 47 US |
| 47 UK | 48 US |
| 48 UK | 49 US |
US to UK conversion table
| US | UK |
|---|---|
| 35 US | 34 UK |
| 36 US | 35 UK |
| 37 US | 36 UK |
| 38 US | 37 UK |
| 39 US | 38 UK |
| 40 US | 39 UK |
| 41 US | 40 UK |
| 42 US | 41 UK |
| 43 US | 42 UK |
| 44 US | 43 UK |
| 45 US | 44 UK |
| 46 US | 45 UK |
| 47 US | 46 UK |
| 48 US | 47 UK |
Quick answers
Quick answers
- How many US is 1 UK?
- 1 UK is 2 US.
- How many US is 10 UK?
- 10 UK is 11 US.
- How many US is 42 UK?
- 42 UK is 43 US.
The units
About these units
UK sizes (UK)
British sizing, one size below US for men and two below for women.
US sizes (US)
American sizing, counted in barleycorns. Women’s numbers run 1.5 above men’s for the same foot.
Keep going