What this calculator does

Dress sizing varies by country, brand and cut. This calculator estimates a general UK size from body measurements, then shows broad US and EU equivalents.

Formula used

The calculator compares bust, waist and hip measurements with a general size table and chooses the largest matching size, since the garment must fit all three points.

How to read the result

Use the estimate as a starting point. For fitted dresses, the garment's own size chart and fabric stretch matter more than a generic conversion.

Assumptions

  • Uses centimetres.
  • Uses a general women's dress size table.
  • Brand-specific 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 it choose the larger size?

If one measurement needs a larger size, a smaller garment may not fit that point. Tailoring or fit preference can still change the best choice.