belt size calculator
🌍 International Belt Size Reference — Get accurate belt conversions for United States, Europe, United Kingdom, Japan, and more. Based on waist measurement plus standard allowances (US +2″, EU +15cm, JP +15cm) and advanced fine-tuning. Perfect for online shopping and global sizing standards.
Measure around natural waist (belly button level)
Add extra length to all belt sizes (ideal for heavy clothing or personal preference)
US/UK
Waist + 2″ → belt size
Waist + 2″ → belt size
EU/DE/FR
Waist(cm) + 15cm → belt length (cm)
Waist(cm) + 15cm → belt length (cm)
JP/International
Waist(cm) + 15cm (CM belt)
Waist(cm) + 15cm (CM belt)
📌 Recommended Belt Sizes
updated in real-time📊 Belt length comparison (cm) – based on your waist + ease
📘 Factors guiding belt sizing (worldwide standards)
🇺🇸 USA / Canada
Belt size = pants waist + 2″. E.g., 34″ waist → belt size 36. Buckle to middle hole.
Belt size = pants waist + 2″. E.g., 34″ waist → belt size 36. Buckle to middle hole.
🇪🇺 EU (Germany, France, Italy)
Belt length (cm) = waist (cm) + 15. Size 95 = fits ~80cm waist.
Belt length (cm) = waist (cm) + 15. Size 95 = fits ~80cm waist.
🇬🇧 United Kingdom
Same as US: waist + 2 inches (often identical to US size).
Same as US: waist + 2 inches (often identical to US size).
🇯🇵 Japan / Asia
Centimeter-based (waist cm + 15). Sizing consistent with EU.
Centimeter-based (waist cm + 15). Sizing consistent with EU.
🌐 AU / New Zealand
Same as US/UK standard (inches).
Same as US/UK standard (inches).
✅ All results include standard regional allowance + your custom “extra ease”. The chart displays total belt length (cm) across regions for easy comparison.