About United Kingdom Bra Sizing
UK bands match US bands in inches, but UK cups use single letters past D (E, F, FF, G, GG) instead of DD/DDD/DDDD.
United Kingdom Band & Cup Reference
Here is the complete band and cup reference for United Kingdom sizing alongside the US equivalent for easy conversion.
| United Kingdom band | US band equivalent | United Kingdom cup letters |
|---|---|---|
| 28 in | 28 | AA · A · B · C · D · DD · E · F |
| 30 in | 30 | AA · A · B · C · D · DD · E · F |
| 32 in | 32 | AA · A · B · C · D · DD · E · F |
| 34 in | 34 | AA · A · B · C · D · DD · E · F |
| 36 in | 36 | AA · A · B · C · D · DD · E · F |
| 38 in | 38 | AA · A · B · C · D · DD · E · F |
| 40 in | 40 | AA · A · B · C · D · DD · E · F |
| 42 in | 42 | AA · A · B · C · D · DD · E · F |
| 44 in | 44 | AA · A · B · C · D · DD · E · F |
Cup Letter Differences
The United Kingdom system uses these cup letters in order from smallest to largest:
AA → A → B → C → D → DD → E → F → FF → G → GG → H
How to Convert From United Kingdom to Other Systems
To convert your United Kingdom bra size to another system, change the band first, then the cup:
- Band conversion: US, UK, IN, and CA all use the same inch-based band.
- Cup conversion: A–D is universal. Past D, US uses DD/DDD, UK uses E/F/FF, and EU/JP/BR use single letters E/F/G or numeric 1/2/3.
Best Brands Sold in United Kingdom
UK shoppers have access to Bravissimo, Curvy Kate, Freya, Panache, M&S, and Boux Avenue.