Clothing Size Converter

About the Clothing Size Converter

The free Clothing Size Converter maps sizes between US, UK, European (EU), Australian (AU), and Japanese (JP) systems for both men and women. Select your gender, garment type, and known size to see equivalents in all five international sizing standards.

Clothing sizes are notoriously inconsistent — not just between countries but between brands within the same country. US sizes have experienced significant "vanity sizing" over the decades, where today's size 8 would have been a size 12 in the 1950s. European sizes use actual body measurements, and Japanese sizes are similarly metric-based.

This converter uses standardized mapping tables that reflect the most common equivalences. For the best fit, always check brand-specific size charts and measure your body dimensions (chest, waist, hips) in centimeters.

When This Page Helps

Shopping internationally or from overseas brands requires accurate size conversion. This calculator eliminates confusion between five major sizing systems and covers men's and women's garments.

How to Use the Inputs

1. Select your gender (men or women).
2. Choose the garment type (tops, bottoms, or dresses).
3. Select your known sizing system (US, UK, EU, AU, or JP).
4. Enter your clothing size.
5. View equivalent sizes across all other systems.
6. Check body measurements for the most accurate fit.

Example Calculation

Tips & Best Practices

• Body measurements (bust, waist, hips in cm) are the most reliable way to find your international size.
• US and AU women's sizes share similar numbering but are offset compared to UK sizes.
• European sizes (like 36, 38, 40) typically correspond to half your chest/bust circumference in cm.
• Japanese sizes use a numbering system (7, 9, 11, 13) for women and S/M/L/XL or cm for men.
• Vanity sizing means a US size 6 today is physically larger than a US size 6 from 20 years ago.
• When in doubt, size up — alterations to reduce size are easier than letting out.

International Clothing Size Systems Explained

The US system uses arbitrary numbers (0—20+ for women, S–XXL or chest inches for men). UK sizing is similar but offset by 4 for women. European sizing is metric-based, roughly corresponding to half the chest measurement. Australian sizing mirrors UK for women. Japanese women's sizing uses odd numbers starting at 5 or 7.

The Vanity Sizing Problem

US clothing sizes have drifted significantly. A size labeled “8” today has measurements that would have been a “12” or “14” decades ago. This makes vintage shopping and international ordering especially confusing. Body measurements in cm are the only reliable constant.

Tips for Online Shopping

Always check the brand's size chart before ordering internationally. Measure yourself with a soft tape in underwear. Compare your measurements to the chart rather than relying on your usual size number. Many brands offer fit guides and customer size reviews.

Frequently Asked Questions

• What is a US size 8 in European sizes?

  For women's tops and dresses, US 8 is approximately EU 38. For women's pants, it's also around EU 38. Men's sizing follows a different mapping where US chest-based sizes add about 10 for EU.

• How do UK and US women's sizes compare?

  UK women's sizes are typically 4 numbers higher than US sizes. So a US 6 is a UK 10, a US 8 is a UK 12, and a US 10 is a UK 14.

• What is Japanese clothing sizing?

  Japanese women's sizes use odd numbers (7, 9, 11, 13, 15). Men's sizes often use S/M/L/XL or centimeter-based chest measurements. JP sizing tends to run smaller than Western sizes.

• Are Australian and UK sizes the same?

  For women, AU and UK sizes are very similar and often identical. However, some Australian brands may differ slightly. Always check the brand's specific chart.

• Why do clothing sizes vary between brands?

  There's no legally enforced sizing standard. Brands target different body shapes and demographics, and vanity sizing leads companies to label garments smaller than their actual measurements to make customers feel smaller.

• How do I find my EU size?

  Measure your bust (for tops) or waist (for bottoms) in centimeters. Your EU size is roughly your bust measurement divided by 2, minus a small adjustment. For example, a 92 cm bust is about EU 38.