Soma Bra Size Chart
Enter your measurements for your exact Soma size — then convert to UK, EU & AU.
Your Soma size
Size chart — US · UK · EU · AU
Data verified Apr 2026 · Official size guide · See an error? Report it
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Baseline: Soma generally runs true to size — most buyers keep their usual size.
Not enough user reports at Soma yet to show a most-common size. Help by adding yours.
Soma Size Equivalents
Common Soma bra sizes converted to UK, EU, and AU sizing.
| US | UK | EU | AU |
|---|---|---|---|
| 32C | 32C | 70C | 10C |
| 34B | 34B | 75B | 12B |
| 34C | 34C | 75C | 12C |
| 34D | 34D | 75D | 12D |
| 36C | 36C | 80C | 14C |
| 36D | 36D | 80D | 14D |
Need a different size? Use the full Soma size chart above or the calculator for your exact measurements.
Soma Sister Size Chart
Sister sizes share the same cup volume on a different band length. If your Soma band rides up or feels loose, try the tighter-band sister; if it digs in, try the looser-band sister — the cups hold the same.
| Your size | Tighter band | Looser band |
|---|---|---|
| 32B | 30C | 34A |
| 32C | 30D | 34B |
| 32D | 30DD | 34C |
| 34B | 32C | 36A |
| 34C | 32D | 36B |
| 34D | 32DD | 36C |
| 34DD | 32DDD | 36D |
| 36B | 34C | 38A |
| 36C | 34D | 38B |
| 36D | 34DD | 38C |
— means Soma doesn't make that sister size.
Need a size we didn't list? Use the interactive sister size chart.
How Soma Sizing Compares
If you wear a 34C in Soma, here's your likely size in other popular brands:
| Brand | US Size | UK Size | EU Size | Fit |
|---|---|---|---|---|
| Soma | 34C | 34C | 75C | true to size |
| Victoria's Secret | 34C | 34C | 75C | true to size |
| Calvin Klein | 34C | 34C | 75C | true to size |
| ThirdLove | 34C | 34C | 75C | true to size |
| Savage x Fenty | 34C | 34C | 75C | true to size |
| Wacoal | 34C | 34C | 75C | true to size |
Sizes shown use standard charts. Actual fit may vary by style — always check the brand's specific size guide.
Soma Sizing & Fit Guide
Soma bras run true to size and are designed for comfort, especially for women 35+. Their Enbliss line uses wireless construction with standard band/cup sizing. Stunning Support offers full coverage with a secure fit. If between sizes, Soma recommends sizing up in the cup.