Clothing Size Converter

Convert women’s, men’s, kids’, bra and jeans sizes for all markets

Updated: September 30, 2026

Calculated in your browser – your inputs are not transmitted and are kept on this device only if you choose

Understanding international clothing sizes

EU, UK, US and international sizes explained

The European clothing size system (EU sizes) is based on chest circumference and other body measurements according to DIN EN 13402. For women, sizes typically start at 32 (very slim) and increase in steps of two up to 48 and beyond. For men, EU jacket and coat sizes correspond to chest circumference in centimeters: EU 50 corresponds to approx. 100 cm chest circumference. Sizes 44–60 cover most of the market.

The British size system (UK) is typically 4–6 units below the EU size for women: EU 38 = UK 10, EU 40 = UK 12. For men, UK often uses the same alphanumeric sizes (S, M, L, XL) as international sizing; for suits and blazers, the numeric chest size is common (rule of thumb EU − 10: EU 50 = UK/US 40). UK men’s shirts are often specified by collar size in inches (e.g. 15½), which has no direct EU equivalent.

The American size system (US) differs from UK by about 4 units for women: EU 38 = UK 10 = US 6, EU 42 = UK 14 = US 10. US pants are specified in waist and length in inches (32×30 = 32 inches waist, 30 inches inseam). In US fashion, "Size 0" is common for very slim fits, corresponding to roughly EU 32–34.

International sizes (XS–XXL) are the most widely used labels worldwide and are preferred by fast-fashion brands. They are less precise than numerical sizes, as they each cover several EU sizes. XS typically covers EU 32–34 (women), S corresponds to EU 36–38, M covers EU 38–40, L corresponds to EU 42–44, XL covers EU 46–48, and XXL is EU 50 and up. Men’s shirts in XS–XXL correspond roughly to EU 44–60.

When shopping internationally – especially from Asian markets (China, Korea, Japan) – sizes often differ significantly. Chinese sizes can run 2–4 EU sizes smaller. It is recommended to measure body dimensions (chest, waist, hips, height) and compare them with the manufacturer’s specific size chart. Our calculator covers the standard European-American-British conversion.

Women’s size chart

EU → UK → US → International

EU 34 = UK 6 = US 2: International: XS
EU 36 = UK 8 = US 4: International: S
EU 38 = UK 10 = US 6: International: S/M
EU 40 = UK 12 = US 8: International: M
EU 42 = UK 14 = US 10: International: L
EU 46 = UK 18 = US 14: International: XL

Calculation examples

EU 38 women (spec reference value)

Table lookup: EU 38 women
UK: 10
US: 6
International: S/M

EU 50 men

Table lookup: EU 50 men
UK/US: M
US/UK suit size (chest): 40
International: M

Frequently asked questions about the clothing size converter

EU, UK, US and international clothing sizes explained

What is size M in the EU?

For women, M usually corresponds to EU 38–40, UK 10–12, US 8–10. For men, M is typically EU 48–52, UK/US M. The exact mapping varies by manufacturer and cut. Our calculator uses the standard chart most commonly used by major fashion retailers (Zalando, ASOS, H&M).

How do women’s and men’s sizes differ internationally?

Women’s EU sizes typically start at 32 (XS) and end at 48+ (XXL). UK and US women’s sizes run 4–6 units smaller than the EU size. Men’s sizes are often given as S/M/L/XL or as an EU jacket size (44–60). UK and US also use XS–XXL or numerical sizes for men (e.g. 34, 36, 38 for pants).

Why does my size differ depending on the shop?

Clothing sizes are not standardized internationally. In Germany, DIN EN 13402 serves as a recommendation, but manufacturers can use their own size charts. Fast-fashion brands (Zara, H&M, Shein) in particular often show significant deviations. Recommendation: always use the shop’s specific size chart and, if unsure, compare body measurements (chest, waist, hips) with the size chart.

What does "Slim Fit" or "Regular Fit" mean for men’s pants?

The "fit" describes the cut, not the size. Slim Fit: cut closer to the body, narrower leg. Regular Fit: standard cut. Relaxed/Loose Fit: cut wider. The EU size (e.g. 52) stays the same, but a slim-fit pair of pants will look smaller. For jeans, the US size (waist × length in inches, e.g. 32/32) is more common than EU sizes.

Are there differences between UK and Irish clothing sizes?

Ireland uses the same clothing sizes as the United Kingdom. A UK 10 corresponds to an Irish 10. Australia and New Zealand also use scales similar to the UK but can differ by 2 sizes (AU 10 ≈ UK 10 for women, AU 10 ≈ UK 14 for men’s shirts). Always check the size chart when buying online from these countries.

How do kids’ sizes work and what age do they correspond to?

Kids’ clothing sizes (50–176) correspond to the child’s height in centimeters. In "Kids" mode, enter the measured height; the calculator rounds up to the next standard size and shows the matching size plus an approximate age. Example: 98 cm gives size 98, which corresponds to about 2–3 years (UK/US label "2-3Y"). The age is only an average value – the actual height is always decisive.

How do I calculate my bra size from underbust and bust measurements?

The underbust measurement determines the band size: 73–77 cm gives, for example, band 75. The difference between bust (overbust) and underbust measurement determines the cup – every 2 cm is one cup step (12–14 cm = A, 14–16 cm = B, etc.). In "Bra" mode, enter both measurements to get the size in EU/DE, UK, US and FR. Note: from cup E onward, UK and US labels diverge (EU E = UK/US DD, EU F = UK E / US DDD). All values are approximate – brands vary.

How do I convert jeans sizes (W/L) from waist and inseam measurements?

Jeans are specified in inches: W (waist) and L (length/inseam). The calculator divides your measurements in cm by 2.54 and rounds to whole inches. Example: 84 cm waist ≈ W33, 81 cm inseam ≈ L32. In addition, "Jeans" mode gives an approximate EU women’s size as a reference value (e.g. W33 ≈ EU 42). The actual fit depends heavily on cut and brand.