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Sizing tool

Belt Size Calculator

Enter measured waist and compare the nearest belt-size reference.

Estimate belt size

Use a measured waist or, preferably, measure a belt that already fits.
Diagram showing a belt measured from the buckle reference point to the hole that is used.
If you have a belt that already fits, this direct measurement is a useful check on a waist-based estimate.

Use this as a starting length

The calculator maps a measured waist to the nearest generic belt row. It works best when the measurement comes from the actual wearing position rather than from a trouser label.

For fashion belts worn on the hips, measure that lower position instead of reusing a natural-waist number.

Method & references

How this guidance is checked

These sources support the measurement method and help check real-world variation. They are not presented as one universal brand-size table.

  • Levi's Belt Size Chart — Levi's. Cross-check showing belt labels depend on the brand’s measurement convention and do not follow one universal waist-plus-offset rule.
  • Men Size Guide — H&M. Cross-check for men’s EU/US clothing, chest and waist ranges, trousers, jackets, and suit-style numeric references.

Related sizing tasks

Belt Size ChartHow to Measure Belt Size

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