Belt Size Calculator
Find your perfect belt size based on waist measurement
Measure around your waist where you normally wear your pants
💡 Pro Tip: Measure your waist over the clothes you'll wear with the belt for the most accurate size.
Your Belt Size (US)
EU cm • Size
US Belt Size
Measured in inches
EU Belt Size
Measured in centimeters
Letter Size
Standard letter sizing
Nearby Sizes
Consider these if you're between sizes:
Belt Size Chart
| Letter | US Size | Waist (inches) |
|---|---|---|
If you like this calculator
Please help us simply by sharing it. It will help us a lot!
Related Calculators
Other calculators you might find useful.
About Belt Size Calculator
Finding the right belt size ensures comfort, style, and a proper fit with any outfit. This calculator helps you determine your accurate belt size using your waist measurement.
How to Measure for Belt Size
Step 1: Measure Your Waist
- Wrap a soft measuring tape around your waist at the point where you normally wear your pants
- Keep the tape level and snug but not too tight
- Record the measurement in inches or centimeters
Step 2: The Golden Rule
Your belt size is typically 2 inches (5 cm) larger than your waist measurement. This accounts for the belt going around your clothing.
Understanding Belt Sizes
US Belt Sizes
US belt sizes are measured in inches and correspond to the belt hole that falls in the middle of the belt (typically the 3rd hole of 5).
EU Belt Sizes
European belt sizes are measured in centimeters and generally match the waist circumference.
Letter Sizes
| Letter Size | US Size Range | Waist (inches) |
|---|---|---|
| XS | 28-30 | 26-28 |
| S | 30-34 | 28-32 |
| M | 34-38 | 32-36 |
| L | 38-42 | 36-40 |
| XL | 42-46 | 40-44 |
| XXL | 46-50 | 44-48 |
Tips for a Perfect Fit
- Try on with your outfit: Belt needs may vary depending on pants thickness
- Check the belt holes: The middle hole should fit your waist comfortably
- Consider the buckle: Some buckles add length, so measure from the buckle prong
- Leave room: A good belt should fit on the middle hole with room to go tighter or looser
When to Buy a New Belt
- When you're using the first or last hole regularly
- After significant weight changes
- When the leather shows significant wear or cracking
Tip: If you're between sizes, it's generally better to size up. You can always add an extra hole to a belt.
How the Calculation Works
Belt Size Formula
Belt Size = Waist measurement + 2 inches (rounded to nearest even number)
Why Add 2 Inches?
The extra 2 inches accounts for the belt going around your clothing, not directly on your skin. This ensures the belt fits comfortably at the middle hole.
⚠️ Important Notes
- Belt sizes vary between brands and styles
- If between sizes, it's better to size up
- Measure over the clothes you'll wear with the belt
- Consider buckle style - some add extra length