Bra Size Calculator Indonesia

Indonesia uses the EU standard: centimetre bands (65, 70, 75, 80…) with single-letter cups and no doubled letters. Local market leader Sorella and international names such as Wacoal, Triumph and Lovable all use this system, so an Indonesian 75C is an EU 75C.
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.
Indonesia bra size chart
| ID 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 Indonesia sizing works
Indonesian 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.
A worked example
A 34-inch underbust with a 3-inch difference is an Indonesian 85D, a US 34C and a UK 34C.
Converting to and from Indonesia sizes
An Indonesian 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 Indonesia
Indonesian stores, including online shops shipping to Indonesia, label in EU sizing. If you are buying from a UK or US brand’s Indonesian site, check whether the listing shows the brand’s home system or the EU conversion — the two can appear side by side.
Indonesia’s biggest homegrown lingerie brand is Sorella, sold alongside Wacoal Indonesia, Triumph Indonesia and Lovable — all in EU centimetre sizing. A worked example: a US 34C is an Indonesian 85D — round your underbust to the nearest 5 cm for the band. Note that many Indonesian market stalls and marketplace listings use US-style 36B/38B labels instead, so on Shopee and Tokopedia check whether the listing shows a centimetre band (65–105) or an inch band (28–46) before ordering.
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 Indonesia use?
Indonesia uses the EU standard: centimetre bands (65, 70, 75, 80…) with single-letter cups A to H and no doubled letters. An Indonesian 75C is an EU 75C, a German 75C and a Japanese 75C.
Which Indonesian brands use EU sizing?
Sorella is Indonesia’s largest homegrown lingerie brand, and Wacoal Indonesia, Triumph Indonesia and Lovable all use the same EU system — so the size is the same whichever of them you buy.
Why do some Indonesian listings show 36B or 38B instead?
Market stalls and marketplace sellers often use US-style inch labels, and many Indonesian stores stock only a narrow range of band-and-cup combinations. On Shopee and Tokopedia, check whether the listing shows a centimetre band (65–105) or an inch band (28–46) before ordering.
How do I convert my US size to an Indonesian size?
Convert the band from inches to centimetres: a US 34C is an Indonesian 85D. The cup letter moves one step above a C, so convert the whole size with the global converter rather than matching letters.