Bra Size Calculator China
China uses EU-style sizing: centimetre bands in steps of 5 (70, 75, 80, 85…) with single-letter cups A to H, and Chinese labels often print both numbers together, such as 34/75B. Once you know the band is your underbust in centimetres, Chinese labels read just like EU ones — but Chinese brands often cut small, so check the brand’s own chart.
Enter Your Measurements
Sizes on this page are estimates. Sizing varies by brand and style, so always check the brand’s own size chart and try on before you buy. Nothing here is medical advice.
How to measure
You need a soft measuring tape and two minutes. Underbust: wrap the tape directly under your bust, level and snug, breathing out normally. Bust: wrap it around the fullest part, level across your back, without pressing in. Enter both numbers above, in inches or centimetres. The full steps are in the step-by-step measuring guide.
China bra size chart
| CN band | US band | UK band | FR band |
|---|---|---|---|
| 70 | 28 | 28 | 85 |
| 75 | 30 | 30 | 90 |
| 80 | 32 | 32 | 95 |
| 85 | 34 | 34 | 100 |
| 90 | 36 | 36 | 105 |
| 95 | 38 | 38 | 110 |
Cups run by the difference between your bust and band measurements. One inch of difference is roughly one cup step in US and UK sizing; in centimetre systems the steps are 2.5 cm.
How China sizing works
Chinese brands label bands in centimetres, rounded to the nearest 5 (70, 75, 80, 85, 90, 95). Cups run A, B, C, D, E, F, G, H with no doubled letters, which is the main difference from UK sizing. Chinese labels often print the US band alongside the centimetre band, such as 34/75B — read the centimetre number as your Chinese band.
A worked example
A 34-inch underbust with a 3-inch difference is a Chinese 85D, a US 34C and a UK 34C.
Converting to and from China sizes
A Chinese 85D is a US 34C and a UK 34C in band terms — but note the cup letter changes, because the EU cup progression counts differently from the US and UK ones. Use the global converter to translate any size exactly.
Common measuring mistakes
Measuring over a padded bra lifts and compresses, giving a smaller bust reading. Measure without a bra or in a thin, unpadded one. Pulling the tape too tight underestimates the band. Letting the tape droop at the back overestimates the bust. Using an old size without re-measuring — weight, pregnancy, breastfeeding and aging all change the numbers, so re-measure every year or two.
Shopping tips for China
Chinese stores label in EU-style sizing, and Chinese brands follow the EU convention closely. If you are buying from a UK or US brand’s Chinese site, check whether the listing shows the brand’s home system or the EU conversion — the two can appear side by side.
Chinese labels often print the inch band and the centimetre band together, such as 34/75B, and brands such as Aimer sell in this EU-style numbering. A worked example: a US 34C is a Chinese 85D — take your underbust in centimetres and round to the nearest 5 for the band. Because Chinese brands often cut small, with cup volumes that run tighter than the same letter in the US or EU, check the brand’s own chart and, if you are between sizes, try the larger cup first.
One habit covers every system: check the system on the label, convert both the band and the cup, and try the bra on before committing to more than one. Returns are easier than a drawer full of the wrong size.
Frequently Asked Questions
What sizing system does China use?
China uses EU-style sizing: centimetre bands in steps of 5 (70, 75, 80, 85…) with single-letter cups A to H. A Chinese 75B is the same label as an EU 75B, and Chinese labels often print both numbers together, such as 34/75B.
Do Chinese bras run small?
Often, yes — Chinese brands commonly cut smaller than the same letter in US or EU sizing, with tighter cup volumes and narrower wires. If you are between sizes, try the larger cup first, and always check the brand’s own size chart rather than trusting the letter alone.
How do I convert my US size to a Chinese size?
Convert the band first: a US 34 band converts to a Chinese 85 band, and the cup letter moves one step — a US 34C is a Chinese 85D. Use the global size converter for the exact translation, and check the brand’s chart for its own grading.
What does 34/75B on a Chinese label mean?
It prints both systems at once: 34 is the US-style inch band and 75 is the centimetre band. Read the 75 as your Chinese band — the two numbers describe the same underbust, not two different sizes.