Shirt Size Conversion Tool
Find your perfect shirt size across different brands and international sizing systems. This calculator converts between US, EU, UK, and other regional sizing standards while accounting for variations between popular brands like Nike, Zara, H&M, Uniqlo, and more. Simply enter your body measurements or known size, select your reference brand, and discover equivalent sizes for shopping anywhere in the world.
Tips for Finding Your Perfect Shirt Size:
- For dress shirts, the neck measurement is crucial - you should be able to fit two fingers between your neck and the collar
- Chest measurements should be taken at the fullest part of your chest, keeping the measuring tape parallel to the floor
- For sleeve length, measure from the center back of your neck, over your shoulder, and down to your wrist
- When between sizes, consider the fit style - size up for a relaxed fit or down for a slim fit
- Remember that fabric type affects how a shirt will fit - stretchy materials like cotton blends provide more flexibility
- Different brands interpret sizing differently - European brands often run slimmer than American brands
- For dress shirts, your collar size and sleeve length are the most important measurements
Men's Shirt Size Chart
| Neck (inches) | Chest (inches) | US Size | EU Size | UK Size | Letter Size | Asian Size |
|---|---|---|---|---|---|---|
| 14-14.5 | 34-36 | 14-14.5 | 36-37 | 14-14.5 | S | M |
| 15-15.5 | 38-40 | 15-15.5 | 38-39 | 15-15.5 | M | L |
| 16-16.5 | 42-44 | 16-16.5 | 40-41 | 16-16.5 | L | XL |
| 17-17.5 | 46-48 | 17-17.5 | 42-43 | 17-17.5 | XL | XXL |
| 18-18.5 | 50-52 | 18-18.5 | 44-45 | 18-18.5 | XXL | 3XL |
| 19-19.5 | 54-56 | 19-19.5 | 46-47 | 19-19.5 | 3XL | 4XL |
Women's Shirt Size Chart
| Bust (inches) | Waist (inches) | US Size | EU Size | UK Size | Letter Size | Asian Size |
|---|---|---|---|---|---|---|
| 32-33 | 24-25 | 0-2 | 32-34 | 4-6 | XS | S |
| 34-35 | 26-27 | 4-6 | 36-38 | 8-10 | S | M |
| 36-37 | 28-29 | 8-10 | 40-42 | 12-14 | M | L |
| 38-40 | 30-32 | 12-14 | 44-46 | 16-18 | L | XL |
| 42-44 | 34-36 | 16-18 | 48-50 | 20-22 | XL | XXL |
| 46-48 | 38-40 | 20-22 | 52-54 | 24-26 | XXL | 3XL |
Brand Size Comparison Chart (Men's)
| Letter Size | Nike | Zara | H&M | Uniqlo | Ralph Lauren | Hugo Boss |
|---|---|---|---|---|---|---|
| XS | 32-34 | 34-36 | 34-36 | 32-34 | 34 | 34 |
| S | 35-37 | 36-38 | 36-38 | 34-36 | 38 | 36-38 |
| M | 38-40 | 38-40 | 38-40 | 38-40 | 40 | 38-40 |
| L | 41-43 | 40-42 | 40-42 | 42-44 | 42 | 42 |
| XL | 44-46 | 42-44 | 44-46 | 46-48 | 44 | 44 |
| XXL | 47-49 | 46-48 | 48-50 | 50-52 | 46 | 46 |
Understanding Shirt Sizes Around the World
Shopping for shirts can be confusing when brands use different sizing systems. Whether you're buying shirts online from international retailers or trying to understand the difference between US, EU, UK, and Asian sizes, our comprehensive shirt size calculator and guide will help you find the perfect fit.
Why Shirt Sizes Vary Between Countries and Brands
Shirt sizing isn't standardized globally for several reasons:
- Regional body types: Sizing systems developed to accommodate the average body proportions in different regions
- Brand-specific fit models: Each brand creates their patterns based on their target customer
- Vanity sizing: Some brands label clothes larger than their actual measurements to make customers feel better
- Historical development: Different sizing systems evolved independently before global commerce became common
Major Shirt Sizing Systems Explained
US Sizing
American shirt sizing typically uses:
- Letter sizes (S, M, L, XL, etc.) for casual shirts and t-shirts
- Neck and sleeve measurements for dress shirts (e.g., 15/32-33, meaning 15-inch neck and 32-33 inch sleeve)
- Numeric collar sizes (14, 15, 16, etc.) for formal shirts
European (EU) Sizing
European sizing generally uses:
- Numeric chest measurements in centimeters (e.g., 38, 40, 42)
- Some brands also use standard international letter sizing
- Italian and French brands might use their own numbering systems
UK Sizing
British sizing is similar to US sizing but with some differences:
- Collar sizes for dress shirts are often the same as US (14, 15, 16, etc.)
- Letter sizing (S, M, L) is common for casual shirts
- UK chest sizes are typically 2 inches less than EU sizes
Asian Sizing
Asian sizing tends to run smaller than Western sizing:
- Japanese (JP) sizes are typically 1-2 sizes smaller than US sizes
- Chinese and Korean sizes often follow similar patterns
- Many Asian brands now offer "International" sizing to accommodate global customers
How to Measure Yourself for the Perfect Shirt Fit
For accurate shirt sizing, you'll need a flexible measuring tape and ideally, a friend to help. Here's how to take the key measurements:
Neck Measurement
Place the measuring tape around the base of your neck, where your collar would sit. Add about ½ inch (1.25 cm) for comfort. This measurement is crucial for dress shirts.
Chest Measurement
Wrap the measuring tape around the fullest part of your chest, just under your armpits. Keep the tape parallel to the floor and breathe normally during measurement.
Sleeve Length
Measure from the middle of the back of your neck, across your shoulder, and down to your wrist. For dress shirts, this measurement is typically combined with the neck size.
Shoulder Width
Measure from the end of one shoulder to the other, across your back. The end of the shoulder is where the horizontal shoulder meets the vertical arm.
Understanding Different Shirt Fits
Even with the correct size, the fit style can dramatically change how a shirt looks on you:
- Regular/Standard Fit: Traditional cut with room in the chest, waist, and sleeves for comfort and movement
- Slim/Tailored Fit: Narrower through the chest and waist for a more contoured look
- Relaxed/Comfort Fit: Extra room throughout for maximum comfort and freedom of movement
- Athletic/Muscle Fit: Broader in the shoulders and chest with a tapered waist for athletic builds
Brand-Specific Sizing Quirks
When shopping across different brands, keep these tendencies in mind:
- European luxury brands (Hugo Boss, Zara) tend to run slimmer than American brands
- American heritage brands (Ralph Lauren, Brooks Brothers) often have a more generous cut
- Athletic brands (Nike, Adidas) typically design for active movement with more room in shoulders and chest
- Fast fashion brands (H&M, Uniqlo) may vary season to season and collection to collection
Tips for Online Shirt Shopping
When you can't try before you buy, follow these guidelines:
- Always check the brand's specific size chart rather than relying on generic size conversions
- Read customer reviews for insights on whether the shirt runs true to size, small, or large
- Know your exact measurements and compare them to the product's size guide
- Consider ordering multiple sizes if you're between sizes or trying a new brand
- Look for retailers with good return policies until you're confident in your size with that brand
Finding the right shirt size shouldn't be a guessing game. With our shirt size calculator and this comprehensive guide, you can shop confidently across brands and international markets, knowing exactly which size will give you the perfect fit.