Bra Size Calculator BD – Find Your Exact Bra Size in Seconds
Find Your Perfect Fit
Official Sassy Secret Calculator- 1. Underbust (Band): Wrap tape tightly around your ribcage (under the bust). Exhale while measuring.
- 2. Overbust (Cup): Measure loosely around the fullest part of your bust (nipple line). Do not squeeze.
🌏 Asian / Chinese Size Equivalency
| US / UK Size | Asian / CN Tag | EU Size |
|---|
📏 Fit tip: Asian-brand cups often run ~1 size smaller in volume. If your size is 75C, try 75D when ordering from a Chinese brand.
• If you measured over clothes (T-shirt/Bra), the size might be wrong.
• If you didn't pull the tape tight on the Underbust, the Band size will be too big.
• Calculators are 90% accurate. If this feels wrong, contact us!
How to Measure Your Bra Size at Home
Are you wearing the wrong bra size? Research shows that 80% of women in Bangladesh wear the wrong fit. Sassy Secret BD has created the most accurate Bra Size Calculator in Bangladesh to help you find your perfect fit in seconds.
Why Correct Sizing Matters
A wrong-sized bra can cause back pain, shoulder marks, and sagging. Whether you are looking for a Seamless Bra, Push-Up Bra, or Maternity Bra, knowing your exact measurement is the first step to confidence.
New to measuring? Read our complete step-by-step guide: How to Measure Your Bra Size at Home in Bangladesh →
Bra Size Mapar Niyom (How to Measure in Bangla)
Many of our customers ask, “Bra size kivabe janbo?” (How do I know my bra size?). Follow these simple steps:
- Underbust Measure: Take a measuring tape and wrap it around your ribcage, just below your bust. Make sure it is tight.
- Overbust Measure: Measure around the fullest part of your chest. Keep the tape loose.
- Enter Data: Put these two numbers into our Online Bra Size Calculator BD above.
Understanding the Calculation
We use the traditional +4/5 Method, which is the standard for imported lingerie in Bangladesh.
- If your Underbust is Even (e.g., 30), we add 4 inches to get your Band Size.
- If your Underbust is Odd (e.g., 29), we add 5 inches.
- The difference between your Band and Bust determines your Cup (A, B, C, D, etc.).
Bra size chart
These tables are the same arithmetic the calculator above uses, so the two can never disagree. Bangladesh mostly stocks imported bras that follow the +4/+5 method, which is what this shop uses.
Find your underbust down the left, your overbust across the top, and read your size where they meet. Measure both in inches over a thin top, not over a padded bra.
| Underbust (inches) | Overbust (inches) | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | |
| 26″ | 30AA | 30A | 30B | 30C | 30D | 30DD | 30F | 30G | · | · | · | · | · | · | · | · | · | · | · | · | · | · |
| 27″ | · | · | 32AA | 32A | 32B | 32C | 32D | 32DD | 32F | 32G | · | · | · | · | · | · | · | · | · | · | · | · |
| 28″ | · | · | 32AA | 32A | 32B | 32C | 32D | 32DD | 32F | 32G | · | · | · | · | · | · | · | · | · | · | · | · |
| 29″ | · | · | · | · | 34AA | 34A | 34B | 34C | 34D | 34DD | 34F | 34G | · | · | · | · | · | · | · | · | · | · |
| 30″ | · | · | · | · | 34AA | 34A | 34B | 34C | 34D | 34DD | 34F | 34G | · | · | · | · | · | · | · | · | · | · |
| 31″ | · | · | · | · | · | · | 36AA | 36A | 36B | 36C | 36D | 36DD | 36F | 36G | · | · | · | · | · | · | · | · |
| 32″ | · | · | · | · | · | · | 36AA | 36A | 36B | 36C | 36D | 36DD | 36F | 36G | · | · | · | · | · | · | · | · |
| 33″ | · | · | · | · | · | · | · | · | 38AA | 38A | 38B | 38C | 38D | 38DD | 38F | 38G | · | · | · | · | · | · |
| 34″ | · | · | · | · | · | · | · | · | 38AA | 38A | 38B | 38C | 38D | 38DD | 38F | 38G | · | · | · | · | · | · |
| 35″ | · | · | · | · | · | · | · | · | · | · | 40AA | 40A | 40B | 40C | 40D | 40DD | 40F | 40G | · | · | · | · |
| 36″ | · | · | · | · | · | · | · | · | · | · | 40AA | 40A | 40B | 40C | 40D | 40DD | 40F | 40G | · | · | · | · |
| 37″ | · | · | · | · | · | · | · | · | · | · | · | · | 42AA | 42A | 42B | 42C | 42D | 42DD | 42F | 42G | · | · |
| 38″ | · | · | · | · | · | · | · | · | · | · | · | · | 42AA | 42A | 42B | 42C | 42D | 42DD | 42F | 42G | · | · |
| 39″ | · | · | · | · | · | · | · | · | · | · | · | · | · | · | 44AA | 44A | 44B | 44C | 44D | 44DD | 44F | 44G |
| 40″ | · | · | · | · | · | · | · | · | · | · | · | · | · | · | 44AA | 44A | 44B | 44C | 44D | 44DD | 44F | 44G |
Grey cells are combinations that do not occur. If your reading sits right on the line between two cells, take the larger cup — a cup that is slightly big is far more comfortable than one that is slightly small.
How the size is worked out
Underbust to band size
| Your underbust (inches) | Your band size |
|---|---|
| 26 | 30 |
| 27 | 32 |
| 28 | 32 |
| 29 | 34 |
| 30 | 34 |
| 31 | 36 |
| 32 | 36 |
| 33 | 38 |
| 34 | 38 |
| 35 | 40 |
| 36 | 40 |
| 37 | 42 |
| 38 | 42 |
| 39 | 44 |
| 40 | 44 |
Difference to cup size
Measure around the fullest part of your bust, then subtract your band size from it.
| Overbust minus band | Your cup |
|---|---|
| less than 1″ | AA |
| 1″ to under 2″ | A |
| 2″ to under 3″ | B |
| 3″ to under 4″ | C |
| 4″ to under 5″ | D |
| 5″ to under 6″ | E/DD |
| 6″ to under 7″ | F |
| 7″ or more | G |
Asian and Chinese sizes
Most bras sold in Bangladesh are imported from China and labelled in centimetres. Cups AA to D are written the same way; a UK/US DD is written E.
| Band (inches) | Asian / Chinese size (cm) |
|---|---|
| 28 | 60 |
| 30 | 65 |
| 32 | 70 |
| 34 | 75 |
| 36 | 80 |
| 38 | 85 |
| 40 | 90 |
| 42 | 95 |
What sizes Bangladeshi women actually buy
People ask what the average bra size in Bangladesh is. We cannot speak for the country, but we can say exactly what we ship. Across 305 bras sold in the last year where the size is a plain band number, 36 is the most common at 28%, and bands 34 to 40 account for almost nine in ten.
| Band | Share of bras we ship |
|---|---|
| 32 | █ 3.9% |
| 34 | █████ 15.1% |
| 36 | █████████ 28.2% |
| 38 | ████████ 24.6% |
| 40 | ███████ 21.3% |
| 42 | ██ 6.9% |
Based on 305 bras shipped in the last 365 days. Sizes sold as S, M, L and XL are not counted here, since they do not name a band.
Shop by Size
Once you have your result, browse our exclusive collections:
Once you have your result, these are the bras our customers order most.
Heavy Bust Support Minimizer Bra – Seamless Wireless + Free Extender (Imported)
Or browse by what you need: seamless bras for invisible comfort, minimizer bras for a smaller look, non-padded bras for a relaxed fit. Our seamless bra guide goes through every type.
FAQ
Q: What bra size method is used in Bangladesh?
A: Most imported bras in Bangladesh follow the +4/5 method. If your underbust is even (e.g. 30 inches), add 4 to get your band size (34). If odd (e.g. 29), add 5 (34). This calculator uses the same method.
Q: My size doesn’t match what I usually buy — which is correct?
A: Many women in Bangladesh wear bras 1–2 sizes too large in the band and too small in the cup. Your calculated size is more accurate. If unsure, WhatsApp us and we’ll help you choose.
Q: Does this calculator work for all bra types?
A: Yes — seamless, minimizer, push-up, maternity, and wireless bras all use the same band and cup system. Once you know your size, every product page has a detailed size chart for that specific style.


Breastfeeding Maternity Bras
Front Button Bras
Invisible Bras
Lace Bras
Light Padded Bras
Minimizer Bras
Non Padded Bras
Push Up Bras
Seamless Bras
Strapless Bras
T Shirt Bras
Teen Bras
Wired Bras
Wireless Bras




Cotton
Lace
Maternity
Period
Seamless
Shorts

