UK to US Men’s Jacket Size Converter – Bomber, Trench & More

🧥 UK to US Men’s Jacket/Coat Size Converter

Select your jacket type and UK size to find the US equivalent.

🔄
Select a jacket type and size to see the US equivalent.

Shopping for men’s jackets between the UK and US can feel like decoding a secret language. UK sizes are numeric (think 36, 38), but US sizes often come in letters (XS, S, M). Whether you’re eyeing a casual bomber, a sleek blazer, or a weatherproof trench coat, getting your size wrong can mean uncomfortable fits and wasted money.

Our UK to US men’s jacket size converter takes the guesswork out. With detailed charts, style notes, and handy tips, you’ll confidently pick the perfect jacket size every time—no matter the brand or style.

Why Men’s Jacket Size Conversion Matters

Imagine buying a classic UK 38 trench coat only to find it’s a snug US XS. That’s not just inconvenient—it kills your style vibe. UK jackets usually use numeric chest measurements, whereas US jackets tend to use letter sizing. This mismatch is why a tool that converts UK jacket sizes to their US equivalents matters:

  • Accurate conversion for all jacket styles: bombers, parkas, peacoats, and more
  • Insights into sizing quirks, like how UK 38 trench coats are a London staple
  • Coverage from UK 36 (US XS) up to UK 46 (US XXL) and beyond
  • Learn about the history of men’s jackets at Wikipedia’s Men’s Outerwear page

UK to US Men’s Jacket Size Chart

Convert UK men’s jacket sizes to US equivalents for various jacket types.

🔥 Casual Everyday Jackets

Jacket TypeUK Style VibeUS Style VibeUK SizeUS Size
Bomber JacketMod vibes, fittedVarsity or military look36–4636–46
Denim JacketSlim, layered under coatsRelaxed, often oversized36–4636–46
Harrington JacketBritish icon (Steve McQueen vibes)Preppy or retro36–4436–44
Puffer JacketUtility-focusedBigger, puffier, more logosS–XLS–XL
Track JacketBritpop revivalStreetwear essentialS–XLS–XL

❄️ Cold Weather & Rain Warriors

Coat TypeUK Style VibeUS Style VibeUK SizeUS Size
ParkaFur-trimmed, country or city-readyDown-filled, sporty brandsS–XXLS–XXL
Trench CoatLondon rainy day defaultWorn for work or date night36–4636–46
Waxed JacketCountryside king (Barbour flex)Heritage look, occasional hipster edge36–4436–44
PeacoatTailored, Navy-inspiredClassy and cold-weather-ready36–4636–46
Overcoat/TopcoatMinimal, worn over suitsMore bold patterns or colors36–4836–48
Duffle CoatPaddington bear approvedNiche, but preppy and nostalgic36–4436–44

💼 Dressy & Office-Ready

Coat TypeUK Style VibeUS Style VibeUK SizeUS Size
Blazer JacketOften part of a suit, slimmer fitMore padded shoulders36–4836–48
Wool Car CoatSmart, minimalPopular in cold cities38–4638–46
Mac CoatLightweight trench variantClean, business-readyS–XLS–XL

🏕️ Outdoorsy, Rugged Types

Jacket TypeUK Style VibeUS Style VibeUK SizeUS Size
Field JacketMilitary-meets-country gentRugged, outdoor-core36–4436–44
Sherpa JacketFuzzy and fashionableCozy, casual, often oversizedS–XLS–XL
Down JacketNeutral tones, function-firstNorth Face, Patagonia styleS–XXLS–XXL
Fleece JacketMid-layer essentialSolo-wear or under shellsS–XLS–XL

🧥 Quick Size Conversion Cheat Sheet

UK Size (Chest in Inches)US Size LabelCommon Letter Size
3636S
3838S–M
4040M
4242L
4444XL
4646XL–XXL
4848XXL

🔁 UK and US sizing for jackets are generally the same in numbers, especially when it’s chest-size based. But when shopping international brands, check the sizing chart because “M” in the UK might feel like “S” in the US depending on the cut.

⚠️ Men’s jackets often use chest measurements (in inches), so sizes typically align closely. Some brands label sizes as S/M/L or 36/38/40/etc., with UK fits sometimes snugger.

How to Use the UK to US Men’s Jacket Size Converter

Our converter is easy to use. Just:

  1. Select your jacket style: bomber, trench coat, blazer, field jacket, etc.
  2. Choose your UK size (e.g., 38, 42).
  3. Get your US equivalent immediately, along with style tips and fun facts.

For example:

  • UK 38 converts to US S, perfect for denim jackets or trench coats
  • UK 42 converts to US L, great for parkas or wool car coats
  • UK 44 converts to US XL, suited for overcoats or field jackets

Learn how to measure your chest for jackets from GQ’s sizing guide.

Tips for Finding the Perfect Men’s Jacket Fit

  • Measure carefully: Use a tape measure over a light shirt for accurate chest and shoulder sizes.
  • Know your jacket type: Casual jackets (like bombers) fit looser than formal blazers.
  • Check brand size charts: Fit varies by brand, so always double-check.
  • Consider layering: Account for what you’ll wear underneath heavier coats.

For style inspiration, check out Vogue’s men’s jacket trends.

Why Choose Our Converter?

  • Covers a wide variety of jackets including bombers, trench coats, blazers, parkas, and more.
  • Fun facts sprinkled throughout, like how UK 36 Harrington jackets are James Bond favorites.
  • Easy to share on social media like Facebook, X (Twitter), Pinterest, and Instagram.
  • Embed the converter on your own site with a simple iframe.

Explore sustainable outerwear with Harper’s Bazaar’s sustainable fashion guide.

Frequently Asked Questions

Q: How do UK and US men’s jacket sizes differ?

A: UK men’s jacket sizes are numeric (e.g., 36, 38), while US sizes are letter-based (e.g., XS, S). For example, UK 38 usually converts to US S.

Q: What is UK 38 jacket size in US men’s?

A: UK 38 corresponds to US S, common for denim jackets or trench coats.

Q: What is US M jacket size in UK men’s?

A: US M converts roughly to UK 40, typical for blazers or puffer jackets.

Q: What is UK 42 jacket size in US men’s?

A: UK 42 equals US L, ideal for parkas or wool coats.

Q: What is UK 44 jacket size in US men’s?

A: UK 44 is US XL, suitable for overcoats or field jackets.

Q: How to measure jacket size in UK?

A: Measure your chest and shoulders with a tape measure. See GQ’s guide for details.

Q: What is UK 36 jacket size in US men’s?

A: UK 36 corresponds to US XS, great for bombers or mac coats.

Q: What is UK 46 jacket size in US men’s?

A: UK 46 matches US XXL, perfect for duffle coats or sherpa jackets.

Q: Are UK men’s jacket sizes true to size?

A: Generally yes, but blazers and tailored fits may run snugger. Always check brand specifics.

Q: Can I convert US men’s jacket size to UK?

A: Absolutely! Our tool converts both ways — US XL = UK 44, for instance.

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