Foot Length to Shoe Size: Complete International Size Chart & Calculator
Master the art of converting foot length to shoe size across all major sizing systems. Learn how US, UK, EU, and Japanese shoe sizes work, and find your perfect fit with our comprehensive measurement guide and conversion charts.
Pro Tip: Always measure your foot length in millimeters for the most accurate size conversion. Different brands may fit differently even within the same sizing system.

Step-by-step foot measurement guide
International conversion table
US, UK, EU, JP explained
Shoe lace length chart and guide
Brand-specific sizing tips
What You Need:
- Ruler or measuring tape
- Piece of paper larger than your foot
- Pen or pencil
- Wall or flat surface
Best Time to Measure:
- Late afternoon or evening
- After walking around for a while
- Wearing the socks you'll use
- Standing on both feet
Step-by-Step Instructions:
- Place the paper against a wall on a hard floor
- Stand on the paper with your heel touching the wall
- Mark the longest point of your foot (usually big toe)
- Measure the distance from wall to mark in millimeters
- Repeat for both feet and use the larger measurement
Important: Measure both feet and use the larger measurement. Most people have slightly different foot sizes.
Men's Shoe Size Chart
| US | UK | EU | JP | CM | IN |
|---|---|---|---|---|---|
| 3 | 2 | 34 | 21.5 | 21.5 | 8.5 |
| 3.5 | 2.5 | 34.5 | 21.5 | 21.5 | 8.5 |
| 4 | 3 | 35 | 22 | 22 | 8.7 |
| 4.5 | 3.5 | 35.5 | 22.5 | 22.5 | 8.9 |
| 5 | 4 | 36 | 22.5 | 22.5 | 8.9 |
| 5 | 4 | 36.5 | 22.5 | 22.5 | 8.9 |
| 5.5 | 4.5 | 37 | 23 | 23 | 9.1 |
| 6 | 5 | 37.5 | 23.5 | 23.5 | 9.3 |
| 6.5 | 5.5 | 38 | 24 | 24 | 9.4 |
| 6.5 | 5.5 | 38.5 | 24.5 | 24.5 | 9.6 |
| 7 | 6 | 39 | 24.5 | 24.5 | 9.6 |
| 7.5 | 6.5 | 39.5 | 25 | 25 | 9.8 |
| 8 | 7 | 40 | 25.5 | 25.5 | 10 |
| 8.5 | 7.5 | 41 | 26 | 26 | 10.2 |
| 9 | 8 | 41.5 | 26.5 | 26.5 | 10.4 |
Women's Shoe Size Chart
| US | UK | EU | JP | CM | IN |
|---|---|---|---|---|---|
| 4 | 2 | 34 | 21.5 | 21.5 | 8.5 |
| 4.5 | 2.5 | 34.5 | 21.5 | 21.5 | 8.5 |
| 5 | 3 | 35 | 22 | 22 | 8.7 |
| 5.5 | 3.5 | 35.5 | 22.5 | 22.5 | 8.9 |
| 6 | 4 | 36.5 | 23 | 23 | 9.1 |
| 6.5 | 4.5 | 37 | 23.5 | 23.5 | 9.3 |
| 7 | 5 | 37.5 | 23.5 | 23.5 | 9.3 |
| 7.5 | 5.5 | 38 | 24 | 24 | 9.4 |
| 7.5 | 5.5 | 38.5 | 24.5 | 24.5 | 9.6 |
| 8 | 6 | 39 | 24.5 | 24.5 | 9.6 |
| 8.5 | 6.5 | 39.5 | 25 | 25 | 9.8 |
| 9 | 7 | 40 | 25.5 | 25.5 | 10 |
| 9.5 | 7.5 | 40.5 | 25.5 | 25.5 | 10 |
| 9.5 | 7.5 | 41 | 26 | 26 | 10.2 |
| 10 | 8 | 41.5 | 26.5 | 26.5 | 10.4 |
Kids' Shoe Size Chart
| US | UK | EU | JP | CM | IN |
|---|---|---|---|---|---|
| 1C | 0.5 | 16 | 9.1 | 9.1 | 3.6 |
| 2C | 1.5 | 17 | 10 | 10 | 4 |
| 3C | 2.5 | 18.5 | 10.8 | 10.8 | 4.3 |
| 4C | 3.5 | 19.5 | 11.6 | 11.6 | 4.6 |
| 5C | 4.5 | 21 | 12.5 | 12.5 | 5 |
| 6C | 5.5 | 22 | 13.3 | 13.3 | 5.3 |
| 7C | 6.5 | 23.5 | 14.2 | 14.2 | 5.6 |
| 8C | 7.5 | 25 | 15 | 15 | 6 |
| 9C | 8.5 | 26 | 15.9 | 15.9 | 6.3 |
| 10C | 9.5 | 27 | 16.7 | 16.7 | 6.6 |
| 10.5C | 10 | 27.5 | 17.2 | 17.2 | 6.8 |
| 11C | 10.5 | 28 | 17.6 | 17.6 | 6.9 |
| 11.5C | 11 | 28.5 | 18 | 18 | 7.1 |
| 12C | 11.5 | 29.5 | 18.4 | 18.4 | 7.3 |
| 12.5C | 12 | 30 | 18.8 | 18.8 | 7.4 |
Note: This chart uses standardized international sizing data. Actual fit may vary by brand and style.
International standard used for ski boots and military footwear
Calculation Method:
Direct foot length in millimeters
Size Increment:
5mm (casual) or 7.5mm (professional)
Example:
280mm foot = Mondopoint 280
Advantages:
- Universal standard
- No gender differences
- Includes width measurement
Disadvantages:
- Limited consumer adoption
- Mainly for specialized footwear
How Shoe Lace Length Relates to Shoe Size
Shoe lace length is directly related to the number of eyelets and the overall size of the shoe. Larger shoes typically require longer laces to accommodate more eyelets and provide proper lacing.
General Shoe Lace Length Guidelines:
- Kids shoes (US 1-6): 27-36 inches (69-91 cm)
- Women's shoes (US 5-10): 36-45 inches (91-114 cm)
- Men's shoes (US 7-12): 45-54 inches (114-137 cm)
- Large men's shoes (US 13+): 54-72 inches (137-183 cm)
Shoe Lace Length Chart by Eyelet Count
| Eyelet Pairs | Lace Length (inches) | Lace Length (cm) | Typical Shoe Size Range |
|---|---|---|---|
| 3 pairs (6 eyelets) | 27-36 | 69-91 | Kids US 1-6 |
| 4 pairs (8 eyelets) | 36-45 | 91-114 | Women's US 5-10 |
| 5 pairs (10 eyelets) | 45-54 | 114-137 | Men's US 7-12 |
| 6+ pairs (12+ eyelets) | 54-72 | 137-183 | Large sizes US 13+ |
How to Measure Your Current Shoe Laces
- Remove the laces from your shoe completely
- Lay them flat on a surface
- Measure from one end to the other in inches or centimeters
- Note the number of eyelet pairs on your shoe
- Use the chart above to find the recommended length for replacement
Pro Tip: When buying replacement laces, it's better to go slightly longer than shorter. You can always tuck excess lace, but short laces won't reach all eyelets.
Nike
Global
Adidas
Global
New Balance
Global
Converse
Global
Vans
Global
Pro Tip: Always check brand-specific size charts when available. Even within the same sizing system, brands can fit very differently.