Belt Size Calculator: Find Your Belt Size from Waist or Pant Size
Free tool · Updated October 2, 2026 · By CouponTalk
Your result
Enter your measurements to see your result.
Quick answer
Belt size is usually your trouser waist size plus 2 inches, measured from the end of the buckle to the middle hole. If you wear size 32 trousers, buy a size 34 (about 86 cm) belt. If you measure an old belt, measure from the buckle fold to the hole you use most.
How to measure
- Choose whether you know your trouser size or waist measurement.
- Enter the number.
- Low-rise jeans may need one size larger.
Belt Size Chart
| Trouser size | Belt size | Belt (cm) | Letter |
|---|---|---|---|
| 28 | 30" | 76 cm | S |
| 30 | 32" | 81 cm | S |
| 32 | 34" | 86 cm | M |
| 34 | 36" | 91 cm | M |
| 36 | 38" | 97 cm | L |
| 38 | 40" | 102 cm | L |
| 40 | 42" | 107 cm | XL |
| 42 | 44" | 112 cm | XL |
Sizes vary between brands by 1–2 cm. Always check the brand's own size chart before you buy.
Frequently asked questions
What belt size for 32 waist?
For 32-inch trousers, choose a 34-inch (about 86 cm) belt, so the buckle sits on the middle hole.
Are belt sizes in inches or cm?
Indian brands use both. Belt size 90 cm is about 36 inches, which fits a 34-inch waist.
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