VI

FOOTWEAR SIZING & FIT LAB

Running Shoe Size Converter & Wide Feet Guide

Eliminate online sizing guesswork. Convert your foot measurement in cm/mm to precise brand-specific US, UK, and EU sizes with toebox clearance recommendations.

Running Shoe Size Converter & Asian Wide Feet Guide

Accurately convert foot length (CM/MM) to US, EU, and UK sizes across 10 leading running brands with custom fit recommendations for wide feet (2E / 4E).

26.0 cm (260 mm)
23.0 cm (Size 36)26.0 cm (Size 41-42)29.0+ cm (Size 45-46)
Quick Select Foot Length:
🔄 Or convert from a shoe you currently wear:

Recommended Sizing Across Brands:

💡 Pro Tips for Sizing Running Shoes:
  • Measure feet in the late afternoon/evening: After a full day of movement, feet expand up to +0.5cm in volume.
  • Thumb Rule clearance: Always leave 0.5cm - 1.2cm (roughly one thumb width) of space between your longest toe and the front of the shoe to avoid black toenails on downhills and long runs.
  • Asian domestic brands (Li-Ning, Xtep, 361°, Anta): Designed with aerodynamic, snug race lasts; wide-footed runners (2E/4E) should size up by +0.5 US compared to standard Nike/Adidas fit.

International Running Shoe Size Reference (Foot Length in CM)

Comprehensive size comparison across US Men, US Women, EU, and recommended foot clearance:

Foot Length (cm)Recommended Shoe (cm)US MenUS WomenEU (Standard)UK
24.0 cm24.5 - 25.0 cm6.5 - 7.08.0 - 8.539.5 - 406.0
24.5 cm25.0 - 25.5 cm7.0 - 7.58.5 - 9.040 - 40.56.5
25.0 cm25.5 - 26.0 cm7.5 - 8.09.0 - 9.541 - 41.57.0
25.5 cm26.0 - 26.5 cm8.0 - 8.59.5 - 10.041.5 - 427.5
26.0 cm26.5 - 27.0 cm8.5 - 9.010.0 - 10.542.5 - 438.0
26.5 cm27.0 - 27.5 cm9.0 - 9.510.5 - 11.043 - 43.58.5
27.0 cm27.5 - 28.0 cm9.5 - 10.011.0 - 11.544 - 44.59.0
27.5 cm28.0 - 28.5 cm10.0 - 10.511.5 - 12.044.5 - 459.5
EXPERT RUNNING FAQ

Frequently Asked Questions About Running Shoe Sizing

Proven tips from shoe testing to nail the right fit on your first purchase.

Why should running shoes be 0.5 – 1 full size larger than daily walking shoes?

During distance runs (especially 10k and above), continuous impact and blood flow cause feet to swell up to 0.5cm. Extra toebox space allows toes to splay forward naturally without black toenails or blister-inducing friction.

Which brands are best for wide feet (2E / 4E)?

Altra and Topo Athletic offer the most anatomical, foot-shaped toeboxes. Among mainstream brands, New Balance, ASICS, and Hoka consistently manufacture dedicated Wide (2E) and Extra Wide (4E) options. For Asian brands (Xtep, Li-Ning, 361, Qiaodan), check our individual lab reviews for exact fit notes.

When is the best time of day to measure your foot length?

Measure your feet in the late afternoon or evening, or immediately following a workout when your feet are at their maximum expanded volume. Always measure both feet and size to the larger foot.

✓Thông báo