US to EU Suit Size Converter
Quick rule: EU ≈ US chest + 10. Example: US 40 → EU 50 for about a 40 in (102 cm) chest. UK usually keeps the same number as US. Match cm on the hangtag when brands disagree.
Quick answer
- US / UK 38 → EU ~48 · 40 → ~50 · 42 → ~52 · 44 → ~54
- Do not order EU 40 because you wear US 40—that EU number is much smaller.
- Convert the chest number first; then check S/R/L or height bands for length.
Suit size finder
Enter chest and height. You get a starting jacket size (number = chest inches, letter = Short / Regular / Long). Brands still vary—confirm on the product chart.
Enter both chest and height to see a size.
US → EU jacket table
| US / UK | EU | Letter | Chest |
|---|---|---|---|
| 34 | 44 | XS | 34 in (86 cm) |
| 36 | 46 | S | 36 in (91 cm) |
| 38 | 48 | S/M | 38 in (97 cm) |
| 40 | 50 | M | 40 in (102 cm) |
| 42 | 52 | L | 42 in (107 cm) |
| 44 | 54 | L/XL | 44 in (112 cm) |
| 46 | 56 | XL | 46 in (117 cm) |
| 48 | 58 | XXL | 48 in (122 cm) |
| 50 | 60 | XXL/3XL | 50 in (127 cm) |
| 52 | 62 | 3XL | 52 in (132 cm) |
Starting map only. Italian numbers usually match EU. Some French charts sit ~2 higher (US 40 → FR 52). Prefer chest cm from the brand chart.
Worked example: US 40
US / UK 40 → EU / IT ~50 for ~40 in (102 cm) chest. If you also need Regular length, that is a US 40R—see what 40R means. Standard-drop pants stay near 34 in waist either way; the EU number does not change drop.
How US to EU suit conversion works
Most EU and Italian jacket labels sit about 10 above the US chest number: US 40 → EU 50, US 42 → EU 52. The body target is still about chest inches; only the printed number changes.
UK jacket numbers usually match US chest inches. Cut still differs—British shoulders can feel more structured at the same number.
Some French charts sit about 2 higher than Italian/EU (US 40 → FR 52). When in doubt, match chest cm on the brand size chart instead of memorizing every country code.
Worked examples
| US / UK | EU / IT (common) | Chest | Notes |
|---|---|---|---|
| 38 | 48 | 38 in / 97 cm | Often S/M on letter racks |
| 40 | 50 | 40 in / 102 cm | Common mid size; see 40R guide |
| 42 | 52 | 42 in / 107 cm | Often L |
| 44 | 54 | 44 in / 112 cm | Often L/XL |
S/R/L when you shop EU brands
- Not every EU brand prints S/R/L. Some list height bands or only one length.
- Convert the chest number first, then check sleeve and jacket length on the product page.
- Use the finder on this page with height in cm if you think in metric.
Conversion mistakes
Avoid: Ordering EU 40 because you wear US 40.
Instead: EU 40 is far smaller. Expect about EU 50 for a US 40 chest.
Avoid: Ignoring cm when the hangtag shows body measurements.
Instead: Match your measured chest cm to the brand row—more reliable than +10 alone.
Related
Frequently asked questions
What is US 40 in EU suit size?
About EU 50 on the common US+10 jacket scale. Match chest cm (≈102 cm) when the brand publishes body measurements.
Is UK suit size the same as US?
Jacket numbers are usually the same chest inches in US and UK. EU/Italian sizes use a different number scale (often ~US+10). British cuts can feel more structured at the same number.
Do S/R/L letters exist in EU?
Some EU brands use Short/Regular/Long or height bands instead of US letters. Always check sleeve and jacket length, not only the chest number.
What about French suit sizes?
Some French charts sit about 2 above Italian/EU (US 40 → FR 52). Prefer chest cm on that brand’s chart when labels disagree.
More questions
- Is Italian suit size the same as EU?
- Usually yes for jacket numbers (IT 50 ≈ EU 50 ≈ US 40). Always confirm with chest cm on that brand's chart.
- What about German Konfektionsgröße?
- Many German jacket numbers follow the same +10 idea as EU. Still verify with cm—do not assume every house uses one scale.