Clothing Size Converter

Free clothing size converter for women's, men's, and kids' sizes. Convert between US, UK, EU, AU, IT, FR, JP sizing systems instantly. Includes body measurement mode, cross-gender conversion, and complete international size charts.

M
Your Size

M

US 8 converts to the sizes shown below.

Size Across Systems

Your size in 7 international sizing systems

US

8

UK

12

EU

38

AU

12

IT

44

FR

38

JP

11

International Size Chart

Complete size conversion chart across 7 sizing systems

USUKEUAUITFRJPLabel
0430436303XXS
2632638325XS
4834840347S
610361042369S
8123812443811M
10144014464013M
12164216484215L
14184418504417L
16204620524619XL
18224822544821XL
202450245650232XL
222652265852252XL
242854286054273XL

How Clothing Sizes Work Across Countries

Understanding why a "Medium" means different things in different countries

Clothing sizes vary significantly across countries because each region developed its own sizing standards independently. The US uses even numbers (0, 2, 4...), the UK uses a different set of even numbers (4, 6, 8...), and Europe uses metric-based numbers (36, 38, 40...). A US size 8 is a UK 12, EU 38, and IT 44 — all the same garment.

Japanese sizing tends to run smaller than Western sizing. A Japanese "L" often corresponds to a Western "S" or "M". This converter includes Japanese (JP) sizes alongside US, UK, EU, AU, IT, and FR systems so you can shop confidently across all seven regions.

7 Systems

Sizing Regions

US, UK, EU, AU, IT, FR, JP

4 Genders

Coverage

Women, Men, Girls, Boys

3 Modes

Input Options

Size convert, Measurements, Cross-gender

How to Measure Yourself for the Perfect Fit

Step-by-step measurement guide for finding your clothing size

1. Bust / Chest

Wrap the measuring tape around the fullest part of your bust or chest. Keep the tape parallel to the ground and snug but not compressing. For men, measure around the widest part of the chest.

2. Waist

Find your natural waistline — the narrowest part of your torso, about 1 inch above your belly button. Wrap the tape around and breathe normally. Don't suck in.

3. Hips

Stand with feet together. Wrap the tape around the widest part of your hips and buttocks. Keep it level all the way around. This measurement is used primarily for women's sizing.

4. Tips for Accuracy

Measure over lightweight clothing or undergarments. Stand straight with arms relaxed. Have someone help if possible. Use a flexible measuring tape, not a rigid ruler.

International Sizing Systems Explained

How US, UK, EU, AU, IT, FR, and JP clothing sizes compare

There is no universal clothing size standard — each region uses its own system. The same garment may be labeled differently depending on the country. Here's how the major systems work:

US Sizing

Women: even numbers 0-24+. Men: letter sizes (S-3XL) for tops, waist inches for bottoms. The most common system for North American brands.

UK Sizing

Women: even numbers starting from 4 (typically 4 higher than US). Men: similar to US. Australian sizes mirror UK sizing.

EU Sizing

Based on EN 13402. Women: numbers 30-54+ (add ~30 to US size). Men: 44-58+. Goes up in increments of 2.

FR, IT & JP

French sizes align closely with EU. Italian sizes add ~36 to US women's sizes. Japanese sizing tends to run 1-2 sizes smaller than Western equivalents.

Common Clothing Size Mistakes to Avoid

Avoid these pitfalls when converting or finding your clothing size

Assuming sizes are universal

A 'Medium' in the US, UK, EU, and Japan are all different. Asian sizing tends to run 1-2 sizes smaller than Western sizing. Always convert, don't assume.

Ignoring fabric stretch

Stretchy fabrics (jersey, spandex blends) can accommodate a range. Structured fabrics (cotton, linen) are less forgiving. Factor in fabric type when choosing between sizes.

Same brand, different fit

Even within the same brand, a 'slim fit' Medium differs from a 'relaxed fit' Medium. Check the specific garment's fit description, not just the size label.

Shopping Asian sizes with Western expectations

Japanese sizing runs noticeably smaller than Western equivalents. A JP XL may fit like a Western M. Always use a converter rather than going by label alone.

About the Clothing Size Converter

How this converter works and what data it uses

This converter maps clothing sizes across 7 international sizing systems (US, UK, EU, AU, IT, FR, JP) for women's, men's, girls', and boys' clothing. Size data is compiled from major retailers (ASOS, H&M, Uniqlo, Nordstrom) with alignment to ASTM D5585 and EN 13402 standards. It supports three conversion modes: direct size-to-size conversion, body measurement-based sizing, and cross-gender conversion (men's ↔ women's, girls' → women's, youth → adult). Results include converted sizes, fit notes, and a complete international reference chart.

Frequently Asked Questions

Common questions about clothing size conversion