Convert common bra band and cup labels between UK, US, EU, French and Australian sizing systems.
How the conversion works
The converter maps common equivalent band and cup labels across the five systems. Band numbering changes by region, and cup labels begin to diverge after D.
Bra sizing is not perfectly standardized across brands. Treat converted sizes as a starting point and use the brand’s own size chart when available.
Bra size conversion chart
Use this chart as a quick band-size reference, then use the converter above for the cup label. Cup letters diverge by region after D, so a full size conversion needs both the band and cup.
| UK / US | EU | France | Australia |
|---|---|---|---|
| 28 | 60 | 75 | 6 |
| 30 | 65 | 80 | 8 |
| 32 | 70 | 85 | 10 |
| 34 | 75 | 90 | 12 |
| 36 | 80 | 95 | 14 |
| 38 | 85 | 100 | 16 |
| 40 | 90 | 105 | 18 |
| 42 | 95 | 110 | 20 |
| 44 | 100 | 115 | 22 |
Example cup mapping used by the tool: UK DD = US DD/E = EU E = FR E = AU DD, while UK E = US DDD/F = EU F = FR F = AU E. Brand sizing can vary, so check the retailer’s own chart before buying.
The mappings used here follow published international comparison tables such as the Brastop bra fitting size chart.