Find Your Perfect Fit

Official Sassy Secret Calculator
⚠️ How to Measure (Crucial Steps):
  • 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.
Your Calculated Size is:
--
👯 Sister Sizes (same cup volume, different fit):
Tip: Go up a band → go down a cup. Go down a band → go up a cup.
🌏 Asian / Chinese Size Equivalency
US / UK Size Asian / CN Tag EU Size
⚠️ Band numbers are identical across Asian, CN, and EU (all use cm). Cup letters AA–D are the same; US/UK DD = CN/Asian E.
📏 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.
⚠️ Common Measurement Errors:
• 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 BraPush-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:

  1. Underbust Measure: Take a measuring tape and wrap it around your ribcage, just below your bust. Make sure it is tight.
  2. Overbust Measure: Measure around the fullest part of your chest. Keep the tape loose.
  3. 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)
30313233343536373839404142434445464748495051
26″30AA30A30B30C30D30DD30F30G··············
27″··32AA32A32B32C32D32DD32F32G············
28″··32AA32A32B32C32D32DD32F32G············
29″····34AA34A34B34C34D34DD34F34G··········
30″····34AA34A34B34C34D34DD34F34G··········
31″······36AA36A36B36C36D36DD36F36G········
32″······36AA36A36B36C36D36DD36F36G········
33″········38AA38A38B38C38D38DD38F38G······
34″········38AA38A38B38C38D38DD38F38G······
35″··········40AA40A40B40C40D40DD40F40G····
36″··········40AA40A40B40C40D40DD40F40G····
37″············42AA42A42B42C42D42DD42F42G··
38″············42AA42A42B42C42D42DD42F42G··
39″··············44AA44A44B44C44D44DD44F44G
40″··············44AA44A44B44C44D44DD44F44G
CupAAABCDDD / EFG

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
2630
2732
2832
2934
3034
3136
3236
3338
3438
3540
3640
3742
3842
3944
4044

Difference to cup size

Measure around the fullest part of your bust, then subtract your band size from it.

Overbust minus bandYour 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 moreG

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)
2860
3065
3270
3475
3680
3885
4090
4295

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.

BandShare 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.

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.