CHINA CONVERTERS · PRACTICAL TOOLS
US bra size to Chinese bra size
Convert a US band and cup to an EU-style Chinese label using Triumph’s specific cup sequence. Start with 34B and edit either component.
Method reviewed 2026-10-15 · Free · No account required
Confirm the chart first. This compares labels using Triumph’s published EU, US and GB columns. It does not claim every Chinese, American or British brand uses this sequence.
Have a Chinese label instead? If your tag reads 75B, 80C or B65, use the Chinese bra size to US converter — it starts from the Chinese label and gives the US size directly.
Chinese bra band size to US / UK chart
A label such as 75B has two components: the nominal band and cup. This tool treats the centimetre-number band as EU-style only when the seller follows that system. The band number is a size label; do not convert 75 cm directly into inches and call it a US band.
| EU-style band | US / UK band |
|---|---|
| 65 | 30 |
| 70 | 32 |
| 75 | 34 |
| 80 | 36 |
| 85 | 38 |
| 90 | 40 |
| 95 | 42 |
| 100 | 44 |
| 105 | 46 |
| 110 | 48 |
Cup letters need their own conversion
Use the same row across this named reference. After D, matching the same letter across systems can give the wrong comparison. UK brands using FF or GG require their own chart; those letters are not present in this Triumph GB sequence and the tool does not guess them.
| EU-style cup | US cup | UK (GB) cup |
|---|---|---|
| AA | AA | AA |
| A | A | A |
| B | B | B |
| C | C | C |
| D | D | D |
| E | DD | DD |
| F | DDD | E |
| G | G | F |
| H | H | G |
| I | I | H |
| J | J | J |
| K | K | K |
| L | L | L |
Worked examples: B65, 75B and 100E
B65 is normalised to 65B, which compares with US 30B and UK 30B in this reference. An EU-style 75B compares with 34B. An EU-style 100E compares with US 44DD and UK 44DD. For reverse lookup, select US and enter 34DDD to compare with EU-style 75F and Triumph UK 34E.
Can this calculate my size from body measurements?
This is a label converter. It does not choose a new bra from bust measurements, infer a cup from clothing sizes, or suggest a sister size without a fitting context. For a purchase, use the product’s underbust and bust chart and fitting instructions; style, stretch and brand can change the fit.
Reference, range and limitations
Source: Triumph international size charts, bra sizes and cup indicator, checked 2026-10-15. Band labels 65–110 and the listed AA–L EU cup sequence are supported as label comparisons. This does not mean every combination is sold or will fit. If a Chinese seller uses another cup progression, use that chart instead.