Dress Size Converter
Convert dress sizes between US, UK, EU, Australian, and Italian systems.
Enter your measurements or current size to find your equivalent in any standard.
Dress size conversion requires mapping body measurements — bust, waist, and hips — to the sizing standard used in each country or region. Because no international standard exists, identical measurements correspond to completely different label numbers across the US, UK, Europe, France, Italy, and Asian markets.
Core measurements needed:
- Bust — measure around the fullest part of the chest, arms relaxed at sides
- Waist — measure around the narrowest point, usually 1 inch above the navel
- Hips — measure around the fullest part of the hips, about 7–9 inches below the waist
General size mapping formula (US women’s sizes):
- US Size 0: Bust 31.5", Waist 24", Hip 34.5"
- Each US size = approximately +1" bust, +1" waist, +1" hip
Cross-country conversion (approximate): UK Size = US Size + 4 EU Size = US Size + 32 French Size = EU Size + 2 Italian Size = EU Size + 4
Where:
- US Size — numeric sizing 0–24; no standard body behind the number, varies by brand
- UK Size — also numeric, starts at 6 where US starts at 0
- EU Size — numeric, based on half-circumference in centimeters; EU 36 ≈ US 4
- French Size — typically EU + 2 (EU 36 = FR 38)
- Italian Size — typically EU + 4 (EU 36 = IT 40)
What each variable means:
- Vanity sizing — US brands have gradually shifted numbers smaller over decades; a modern US size 8 is roughly what was a size 14 in the 1950s
- Fit type — “fitted” dresses size to exact measurements; “relaxed” or “oversized” may size up; always check the brand’s own size chart when available
- Stretch vs. woven — stretch fabrics allow 1–2 size flexibility; woven/structured garments have zero give, so precise measurement is critical
Reference: US to international conversion table:
| US | UK | EU | FR | IT |
|---|---|---|---|---|
| 0 | 4 | 32 | 34 | 36 |
| 4 | 8 | 36 | 38 | 40 |
| 8 | 12 | 40 | 42 | 44 |
| 12 | 16 | 44 | 46 | 48 |
| 16 | 20 | 48 | 50 | 52 |
Worked example: Measurements: Bust 36", Waist 28", Hip 38".
- US size = approximately US 8 (matches standard US 8 chart: 35.5–36.5" bust)
- UK equivalent = 8 + 4 = UK 12
- EU equivalent = 8 + 32 = EU 40
- French = EU 40 + 2 = FR 42
- Italian = EU 40 + 4 = IT 44
Always measure in the morning before eating for the most consistent results, and remeasure every 6–12 months as bodies change.