What this calculator does
Women's dress size systems differ by market. This calculator gives broad UK, US, EU, French and Italian equivalents for quick comparison.
Formula used
The known size is converted to a UK baseline, then mapped to the other systems using common retail conversion differences.
How to read the result
Conversion is a guide, not a guarantee. Fitted garments should be checked against bust, waist and hip measurements on the brand chart.
Assumptions
- Uses general adult women's conversion.
- Does not account for petite, tall, plus or maternity ranges.
- Brand charts may differ.
Sources and checks
This calculator uses a standard public formula. Where rules or thresholds can change, source links are listed on the relevant page.
Frequently asked questions
Why does the same dress size fit differently?
Cut, ease, fabric stretch and the customer's body shape all affect fit beyond the size label.