Clothing Size Converter (International)

Convert clothing sizes between US, EU, UK, and AU standards with an intuitive interface powered by authoritative mapping data.

Step 1

Provide your size

Type a numeric size (e.g., "US 10" or "12") and choose the region standard it belongs to.

How to Use This Clothing Size Converter

Enter the size you know and choose its region of origin. The converter matches that input to the closest mapping entry and shows the standard equivalents for US, EU, UK, and AU markets.

Methodology

Conversions rely on the Laughing Hens Clothing Size Conversion Chart, which provides side-by-side equivalents. The tool interprets your entry as a numeric value, matches it to the nearest chart size within the selected region, and surfaces each regional equivalent for easy reference.

All outputs are approximations derived from the published chart. Brand-specific variations may shift the best-fit size, so consider this a starting point for selecting clothing internationally.

Glossary of Terms

  • US Size: United States numeric sizing system.
  • EU Size: European numeric standard often used across brands in Europe.
  • UK Size: United Kingdom sizing, typically two sizes smaller than US.
  • AU Size: Australian sizing, closely aligned with UK measurements.

Example Usage

Suppose you own a US size 10 dress. Set the region to "US" and enter "10" or "US 10". The tool then shows that the closest EU equivalent is 40, the UK size is 14, and the AU size is 14, giving you the international references needed to shop overseas.

Frequently Asked Questions

Why are clothing sizes different across regions?

Sizing schemes reflect different body measurement traditions and industry standards, so a single numeric size does not correspond directly across regions.

How accurate is the size conversion?

The converter follows widely accepted guidelines, but actual garments may still fit differently depending on the brand, cut, and fabric.

Can I use the converter for all types of clothing?

Yes, the converter suits most ready-to-wear garments, though specialty items (outerwear, performance wear) may require additional attention.

Do I need to know my exact size in each region?

No. Just provide the size and region you do know, and the converter will fill in the rest.

How do I handle discrepancies between brand sizes?

Always consult the specific brand's size chart when possible, as the converter provides a general baseline.

What should I do if a size seems incorrect?

Double-check the input and selected region, and try a nearby size if the chart match feels off.

Formulas

Conversion mapping: Sizeregion = Mapping(Sizeinput).

The calculator finds the entry in the authoritative chart that most closely matches your input size (per the selected region) and then displays the equivalent sizes for all supported regions.

Citations

Laughing Hens Clothing Size Conversion Chart: https://www.laughinghens.com/clothing-size-conversion-chart (accessed 2026-01-19).

Changelog
  • 0.1.0-draft — 2026-01-19: Initial audit draft, formula placeholder, and verification notes.
  • 0.1.1 — 2026-01-20: Refined layout to canonical hero, improved parsing, and added validation safeguards.
Verified by Ugo Candido Last Updated: 2026-01-19 Version 0.1.1
Version 1.5.0