Estimated size
Band fit
Band + cup estimate
Bra Size Calculator
Enter underbust and bust measurements to estimate band and cup size, then compare common international size labels.
Estimated size30DDD/FEU 65F / FR/ES 80F
International conversion
US/UK30DDD/F / 30EBand 30
EU65FBand 65
FR/ES80FBand 80
Cup difference5.9 in15 cm
International conversion
| Unit | Estimated size | Band / Cup |
|---|---|---|
| US/UK | 30DDD/F / 30E | Band 30, Cup DDD/F |
| EU | 65F | Band 65 |
| FR/ES | 80F | Band 80 |
| AU/NZ | 8E | Band 8 |
| JP | 65F | Band 65 |
Fit reminder
Brand, style, body shape, and cup construction can change the final fit. Use this as a starting point only.
If the band rides up it may be too loose; if it painfully digs in it may be too tight.
Measurement tips
- Measure underbust with the tape level and snug while breathing normally.
- Measure bust around the fullest point without compressing tissue.
- If cups gape or spill over, adjust cup size one step and recheck the band.