How do I convert women's shoe size to men's?

Women's US shoe sizes are approximately 1.5 sizes higher than men's for the same foot length. To convert women's to men's, subtract 1.5 (e.g., women's 10 = men's 8.5). For UK sizes, subtract about 2. Use our converter above for exact conversions across all systems.

What is EU shoe size 42 in US?

EU 42 is approximately US Men's 8.5 or US Women's 10 (both correspond to a foot length of about 25.7 cm). However, this can vary slightly by brand. The converter shows the standard conversion based on foot length measurements.

How do I convert European shoe sizes to US?

European (EU) sizes use a different scale than US sizes. For men, roughly subtract 34 from the EU size (EU 44 ≈ US 10). For women, subtract about 31 (EU 39 ≈ US 9). These are approximations — use the converter for accurate results based on foot length.

What is the difference between UK and US shoe sizes?

For men, UK sizes are typically 0.5 size smaller than US sizes (US 10 ≈ UK 9.5). For women, UK sizes are about 2 sizes smaller than US sizes (US 8 ≈ UK 6). The difference exists because each system uses a different starting point for their scales.

How do I measure my foot for shoe size?

Stand on a piece of paper with your heel against a wall. Mark the tip of your longest toe, then measure from the paper's edge to the mark in centimeters. Measure both feet and use the larger one. Measure in the evening when feet are slightly swollen for the most accurate everyday fit.

Why do shoe sizes vary between brands?

Different brands use different lasts (foot-shaped molds) and may interpret sizing standards slightly differently. A US 10 in Nike might fit differently than a US 10 in Adidas because the shoe's shape, toe box, and overall construction vary. Always check brand-specific size guides when possible.

What does shoe width mean and how does it affect sizing?

Shoe width (D for standard men's, B for standard women's) measures how wide the shoe is across the ball of the foot. Width designations range from narrow (A/AA) to extra wide (EE/EEE). Size conversion charts are based on length only. If you have wide feet, you might need to go up half a size in some brands.

How do I convert kids' shoe sizes to adult sizes?

Kids' shoe sizes use a separate scale. Youth sizes (kids' 1-7) are not directly comparable to adult sizes. Generally, a kids' size 7 (24.8 cm foot) is roughly equivalent to a women's 9 or men's 7.5. Our converter handles Kids' sizing as a separate category for accurate results.

Are Japanese shoe sizes the same as centimeters?

Yes. Japanese (JP) shoe sizes directly correspond to foot length in centimeters. A JP 27 means the shoe is designed for a foot that is 27 cm long. This is the most straightforward sizing system and is also used in Mexico (MX). Korean sizes use the same concept but in millimeters (JP 27 = KR 270).

How accurate are shoe size converters?

Standard conversion charts are accurate for determining the equivalent size number across systems. However, actual fit depends on brand, shoe style, foot width, and personal preference. We recommend using foot length in centimeters as the most reliable way to find your size, then trying shoes on whenever possible.

Shoe Size Converter

Convert From

Size (US)

Select your shoe size in any system and instantly see the equivalent in all other sizing standards. Sizes are based on foot length measurements and international standards.

Men's Shoe Size

US 10

Foot length: 27 cm (10.6")

All Size Systems

US 10 converted to 8 international sizing standards

9.5

270

Foot Length

Your estimated foot measurement based on the selected size

Centimeters

27 cm

Inches

10.6"

Women's Equivalent

Same foot length in women's sizing

11.5

9.5

Men's Size Chart

Complete conversion reference table

US	UK	EU	CM	BR	KR
3.5	3	35	21.6	5.5	216
4	3.5	36	22	6	220
4.5	4	36.5	22.4	6.5	224
5	4.5	37.5	22.9	7	229
5.5	5	38	23.3	7.5	233
6	5.5	38.5	23.7	8	237
6.5	6	39	24.1	8.5	241
7	6.5	40	24.5	9	245

Sizes are approximate and may vary by brand and style. Always refer to the specific brand's size guide for the most accurate fit.

How Shoe Size Conversion Works

Understanding the relationship between foot length and international sizing standards

Shoe sizing varies across countries because each system was developed independently. The key to accurate conversion is foot length in centimeters — the one universal measurement that all systems ultimately reference.

Foot Length

Universal base measurement

±1.5

M↔W Offset

Women's vs Men's US

Systems

International standards

How the Converter Works

This converter uses empirical lookup tables cross-referenced against the Brannock device, ISO 9407, and major brand charts. Each source size maps to a foot length in cm, which is then matched to the nearest standard size in every other system.

JP / MX = foot length (cm) directly. KR = foot length in mm. BR ≈ US + 2 (approximation).

Example — Foot Length 27 cm (10.63")

US Men

table match

9.5

table match

= cm

International Size Systems Explained

How shoe sizing works in different regions around the world

US / Canada

Based on the Brannock device. Men's and women's scales differ by ~1.5 sizes. Half sizes available. Most common system in North America.

Brannock device • Half-size increments

UK / India / Australia

Uses the barleycorn system (1/3 inch per size). UK men's is typically 0.5-1 size less than US men's. India and Australia follow UK sizing.

Barleycorn system • 8.46mm per size

EU (Continental Europe)

Uses the Paris point system (6.67mm per size). Technically unisex — same number scale for men and women. Used across most of Europe.

Paris points • 6.67mm per size

CM (Foot Length)

Not a regional system but the universal base measurement. Your foot length in centimeters is what all other systems ultimately convert from.

Universal reference • Most accurate

Japan (JP)

Size equals foot length in centimeters. The simplest system — a JP 27 means a 27 cm foot. Recommended by ISO 9407.

ISO 9407 • Size = foot cm

Mexico (MX)

Also uses centimeters like Japan. An MX 27 means a 27 cm foot. Part of the Mondopoint-based family of sizing.

Mondopoint cm • Same as JP

Brazil (BR)

Brazilian sizes are approximately US + 2. Based on the French point system with regional variations. Note: our BR conversion uses this approximation, not a full BR lookup table.

French point variant • ≈ US + 2 (approx.)

Korea (KR)

Uses millimeters instead of centimeters. A KR 270 equals JP 27 (27 cm foot length). Simple and precise.

Mondopoint mm • KR = JP × 10

Size System Technical Reference

Unit types, increment sizes, and regional usage for each sizing standard

System	Unit	Increment	Regions
US	Barleycorn	~8.46mm	USA, Canada
UK	Barleycorn	~8.46mm	UK, India, Australia
EU	Paris point	6.67mm	Europe
JP	Centimeters	5mm	Japan
MX	Centimeters	5mm	Mexico
KR	Millimeters	5mm	South Korea
BR	French point	6.67mm	Brazil
CM	Centimeters	5mm	Universal (foot length)

How to Measure Your Foot

Step-by-step guide for finding your exact foot length

1. Stand on Paper

Place a sheet of paper against a wall. Stand on it with your heel touching the wall. Wear the socks you'd normally wear with shoes.

2. Mark the Longest Toe

Use a pen to mark the tip of your longest toe (which isn't always the big toe). Keep the pen perpendicular to the paper.

3. Measure in CM

Use a ruler to measure from the edge of the paper (heel) to the mark (toe) in centimeters. This is your foot length.

4. Measure Both Feet

Most people have one foot slightly larger than the other. Always use the larger measurement for sizing.

5. Measure in the Evening

Feet swell throughout the day, so evening measurements give the most practical and comfortable size for everyday wear.

For the most accurate results, measure your feet while standing (not sitting) with your full weight distributed evenly. A Brannock device at a shoe store can also give you a precise measurement.

Common Shoe Size Conversion Mistakes

Pitfalls to avoid when converting between international shoe sizing systems

Ignoring brand variation

A US 10 in Nike can feel different from a US 10 in Adidas. Conversion charts give standard equivalents, but brands use different lasts (foot molds).

Not accounting for width

Size conversions are based on length only. If you have wide or narrow feet, you may need to size up or down regardless of the conversion.

Confusing men's and women's

A women's US 10 is NOT the same as a men's US 10. Women's sizes run about 1.5 sizes higher (women's 10 ≈ men's 8.5).

Assuming EU sizes are fully unisex

While the EU numbering is technically unisex, the shoe shape (last) still differs between men's and women's shoes at the same EU size.

Using old shoes as reference

Shoe sizes can change over time. Your feet change shape with age, and sizing standards evolve. Always re-measure periodically.

About the Shoe Size Converter

How this converter works and what it covers

This converter determines your equivalent shoe size across 8 international sizing systems (US, UK, EU, CM, JP, MX, BR, KR) using foot length as the universal reference. It supports men's, women's, and kids' categories, with automatic cross-gender conversion for men's and women's sizes. All conversions are based on standard industry conversion tables cross-referenced against the Brannock device, ISO 9407, and major footwear brand size charts.

Frequently Asked Questions

Common questions about shoe size conversion and fitting

Shoe Size Converter

US 10

All Size Systems

Foot Length

Women's Equivalent

Men's Size Chart

How Shoe Size Conversion Works

International Size Systems Explained

US / Canada

UK / India / Australia

EU (Continental Europe)

CM (Foot Length)

Japan (JP)

Mexico (MX)

Brazil (BR)

Korea (KR)

Size System Technical Reference

How to Measure Your Foot

Common Shoe Size Conversion Mistakes

Ignoring brand variation

Not accounting for width

Confusing men's and women's

Assuming EU sizes are fully unisex

Using old shoes as reference

About the Shoe Size Converter

Frequently Asked Questions

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