Aerie Bra Size Chart
Enter your measurements for your exact Aerie size — then convert to UK, EU & AU.
Size chart — US · UK · EU · AU
Data verified Jun 2026 · Official size guide · See an error? Report it
Own a Aerie bra? Tell us how it fitPicking the Right Aerie Bra in Your Size
| Style | Sizing | Note |
|---|---|---|
| Real Sunnie | Band + cup | Lightly lined, natural fit — go by your measured size |
| SMOOTHEZ | Band + cup | Smoothing / wireless — true to size |
| Bralette / wireless | S / M / L | Stretchy — choose by snug vs. relaxed preference |
Own a Aerie bra? Tell us how it fit.
Your report helps the next person find their size. Anonymous, no login.
Baseline: Aerie generally runs true to size — most buyers keep their usual size.
Not enough user reports at Aerie yet to show a most-common size. Help by adding yours.
Aerie Size Equivalents
Common Aerie 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 Aerie size chart above or the calculator for your exact measurements.
Aerie Sister Size Chart
Sister sizes share the same cup volume on a different band length. If your Aerie 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 Aerie doesn't make that sister size.
Need a size we didn't list? Use the interactive sister size chart.
How Aerie Sizing Compares
If you wear a 34C in Aerie, here's your likely size in other popular brands:
| Brand | US Size | UK Size | EU Size | Fit |
|---|---|---|---|---|
| Aerie | 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.
Aerie Sizing & Fit Guide
Aerie bras run true to size. The Real Sunnie line is known for comfort and a natural fit, and wireless styles offer relaxed support. Bands are stretchy, so if you are between sizes go by your underbust measurement and check the cup fit by style — Aerie recommends a free in-store fitting or their Best Fit Finder to confirm.
How to measure for a Aerie bra