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Pants Size Converter

Convert waist and inseam between inches and centimeters. When our dataset contains verified rows, match pant labels across regions.

Dataset note: 2026-06-12 · Review target every 90 days. Women's UK/US/EU rows and waist (cm) match ASOS Women's Jeans & Trousers size chart (International single size conversion + body measurements), re-verified 2026-06-12. Men's US waist inches and waist (cm) match ASOS Men's Pants & Jeans chart on the same date. Men's UK column uses the common jeans practice that UK waist W equals US waist inches (ASOS documents UK/US inch waist consistently on men's charts). Men's EU column is France/Italy-style from the Levi's men's international conversion table on size-charts.com (aggregated third-party, re-verified 2026-06-12)—EU denim tags vary by country (Germany often uses different numbers). Always confirm on the brand tag before purchase.

Jeans flat lay with a soft tape measure along the inseam for waist and length sizing

Measure waist and inseam first—then use the tabs below for units and label matching.

Pants Size Tools

Label conversions use verified rows from the data file with cited sources. Waist and inseam unit math uses 2.54 cm per inch. JP appears only when the dataset includes JP values.

Gender

USUKEUWaist cmVerified
0432582026-06-12
263460.52026-06-12
4836632026-06-12
61038682026-06-12
81240732026-06-12
101442782026-06-12
121644832026-06-12
141846912026-06-12
162048982026-06-12
1822501052026-06-12
2024521122026-06-12
2226541192026-06-12

Frequently asked questions

Where do international pant label conversions come from?
Women's UK/US/EU matches the ASOS women's jeans and trousers size chart (international single size conversion and waist cm on the same page). Men's waist inches and centimetres match the ASOS men's jeans chart. Men's UK uses the same inch waist as US W labels for jeans. Men's EU uses France/Italy-style numbers from an aggregated Levi's conversion table on size-charts.com; continental EU tags are not one single system, so confirm on the brand chart. Japan (JP) appears only when verified rows include JP values.
Does the unit tab convert US pant sizes to EU?
No. The unit tab only converts length measurements between inches and centimeters. Cross-country label matching uses the international labels tab when verified rows are available.

Related pages

How to measure pants sizePants size chart (reference table)Clothing size converterClothing size charts
Dataset sources (metadata)