Jacket Size Chart
Whether you are shopping for a sport coat, suit jacket, or overcoat, knowing your jacket size is essential. Jacket sizes in the US and UK are based on your chest measurement in inches. European sizes use a different numbering system. Use the chart below to find your size across all three systems.
| US / UK | EU | Chest (in) | Chest (cm) | Shoulder (in) | Shoulder (cm) |
|---|---|---|---|---|---|
| 34 | 44 | 34" | 86 | 16.5" | 42 |
| 36 | 46 | 36" | 91 | 17" | 43 |
| 38 | 48 | 38" | 97 | 17.5" | 44 |
| 40 | 50 | 40" | 102 | 18" | 46 |
| 42 | 52 | 42" | 107 | 18.5" | 47 |
| 44 | 54 | 44" | 112 | 19" | 48 |
| 46 | 56 | 46" | 117 | 19.5" | 50 |
| 48 | 58 | 48" | 122 | 20" | 51 |
| 50 | 60 | 50" | 127 | 20.5" | 52 |
Understanding Jacket Fits
Slim Fit
A slim-fit jacket sits close to the body with a narrower chest, higher armholes, and a more tapered waist. This cut works best for men with lean or athletic builds. The shoulder seams should sit right at the edge of your shoulders, and there should be no pulling across the chest when buttoned.
Regular Fit
A regular-fit jacket offers a classic silhouette with moderate room through the chest and waist. It provides comfortable movement without appearing baggy. This is the most versatile fit and works well for most body types. The jacket should follow the natural lines of your body without clinging.
Relaxed Fit
A relaxed-fit jacket provides the most room through the chest, waist, and armholes. It is ideal for larger builds or for those who prioritize comfort. While the jacket should still fit well through the shoulders, the body has more ease of movement. This fit is popular for casual sport coats and unstructured jackets.
How to Measure for a Jacket
To find your jacket size, measure around the fullest part of your chest, keeping the tape measure level and snug but not tight. Your chest measurement in inches corresponds directly to your US/UK jacket size. For shoulder width, measure from the edge of one shoulder to the other across the back. For a complete measurement guide, visit our how to measure for a suit page.
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