Clothing Size Calculator
Enter your body measurements and get your size in US, UK, EU, Italian and Japanese sizing — for tops and bottoms.
Please enter chest, waist and hip measurements.
How Clothing Sizes Work
Clothing sizes are supposed to map your body measurements to a simple label — but every region invented its own system. The US uses 0–20 for women, the UK runs 4 higher than the US, the EU uses centimetre-based numbers (32–52), Italy its own scale, and Japan another. This calculator converts between all five from your actual measurements.
How to Measure for Clothing Size
- Bust/Chest: tape around the fullest part, keeping it level across your back.
- Waist: around your natural waistline — the narrowest point, usually near the navel.
- Hips: around the fullest part of your hips and buttocks, feet together.
- Keep the tape snug but not tight — you should be able to slip one finger underneath.
Women's Size Conversion Chart
| US | UK | EU | IT | JP | Bust (in) | Waist (in) |
|---|---|---|---|---|---|---|
| 4 | 8 | 36 | 42 | 7 | 34 | 26 |
| 6 | 10 | 38 | 44 | 9 | 35 | 27 |
| 8 | 12 | 40 | 46 | 11 | 36 | 28 |
| 10 | 14 | 42 | 48 | 13 | 37.5 | 29.5 |
| 12 | 16 | 44 | 50 | 15 | 39 | 31 |
Men's Size Conversion Chart
| US / UK | EU | IT | JP | Chest (in) |
|---|---|---|---|---|
| S | 46 | 46 | M | 35–37 |
| M | 48–50 | 48–50 | L | 38–40 |
| L | 52–54 | 52–54 | XL | 42–44 |
| XL | 56–58 | 56–58 | 2XL | 46–48 |
Woman with bust 36″, waist 28″, hips 39″ → best match US 8 / UK 12 / EU 40 / IT 46 / JP 11. If her waist measured 30″ instead, she'd take a US 10 in bottoms but US 8 in tops — different sizes for tops and bottoms is completely normal.
Tips for Getting the Right Fit
- Between sizes? Size up for woven fabrics (no stretch), down for knits.
- Vanity sizing is real — high-street brands often label generously; trust measurements, not the tag.
- Tops follow bust, bottoms follow hips — buy for your largest relevant measurement.
- Always check the brand's own chart — our conversions are standard; individual brands drift by a full size.
Frequently Asked Questions
What is the difference between US and UK sizes?
UK sizes run 4 numbers higher than US for women: a US 8 is a UK 12. For men, US and UK letter sizes (S, M, L) are identical.
How do EU clothing sizes work?
EU sizes are roughly based on body measurements in centimetres. For women, EU ≈ US + 32 (US 8 → EU 40). For men, EU ≈ chest measurement in cm ÷ 2 (a 100 cm chest → EU 50).
Why do I wear different sizes in different brands?
There's no enforced standard — brands use their own fit models and many practice vanity sizing. Your body measurements are the only consistent reference; compare them to each brand's chart.
Should I size up or down if I'm between sizes?
Size up for structured, non-stretch garments (blazers, dress shirts); size down for stretchy knits. For jeans, consider the fabric's elastane content.
Are Italian sizes the same as EU sizes?
For men, yes — they're identical. For women, Italian sizes run 6 higher than EU (IT 46 = EU 40 = US 8).