How to Measure Your Bra Size at Home in Bangladesh (Step-by-Step Guide)

Did you know that most women in Bangladesh are wearing the wrong bra size? An ill-fitting bra causes shoulder pain, red marks, back strain, gaping cups, and that frustrating overflow under your kameez. The good news: you can measure your correct bra size at home in under five minutes — with nothing more than a soft measuring tape and this guide.

This is the same method our free Bra Size Calculator uses, designed specifically for Bangladeshi women and imported bra sizing.

What You Need

• A soft measuring tape (the kind used for tailoring)
• A mirror, or someone to help
• A thin, non-padded bra or no bra (never measure over a padded or push-up bra)

Bra Size Mapar Niyom — How to Measure in 2 Simple Steps

Many of our customers ask, “bra size kivabe map korbo?” (how do I measure my bra size?). It comes down to two measurements: your band and your bust.

Step 1: Measure Your Underbust (Band Size)

Wrap the measuring tape firmly around your ribcage, directly underneath your bust. The tape should be snug and level all the way around — tight, but not so tight that it hurts. Breathe out while you measure. Note this number in inches. This is your underbust measurement.

Step 2: Measure Your Overbust (Bust Size)

Now wrap the tape loosely around the fullest part of your bust — usually across the nipple line. Keep the tape relaxed and level; do not pull it tight or squeeze. Note this number in inches. This is your overbust measurement.

How to Calculate Your Band Size (The +4/5 Method)

In Bangladesh, most imported bras follow the +4/5 method:

• If your underbust measurement is an even number, add 4 inches.
• If your underbust measurement is an odd number, add 5 inches.

The result is your band size.

Example: If your underbust is 30 inches (even), add 4 → your band size is 34. If your underbust is 29 inches (odd), add 5 → your band size is also 34.

How to Calculate Your Cup Size

Subtract your band size from your overbust measurement. The difference tells you your cup:

Example: If your overbust is 37 inches and your band size is 34, the difference is 3 inches → your cup is C. Your full bra size is 34C.

Bra Size Chart for Bangladesh

Use this quick-reference chart to double-check your result:

Common Measuring Mistakes to Avoid

• Measuring over thick clothing or a padded bra. This adds inches and gives you the wrong size. Measure on bare skin or over a thin bra only.
• Pulling the bust tape too tight. The underbust tape should be snug, but the overbust tape should stay loose. Squeezing the bust gives a smaller, incorrect cup.
• Letting the tape slope. Keep it level and parallel to the floor all the way around, including across your back.
• Trusting your old size. Many women in Bangladesh buy a band that’s too loose and a cup that’s too small out of habit. Your measured size is more accurate — trust it.

Why the Right Bra Size Matters

Wearing your correct size isn’t just about looks. The right fit:

• Eliminates shoulder grooves and back pain from poorly distributed weight
• Stops cup overflow and gaping under fitted tops and kameez
• Gives a smoother, more confident silhouette under any outfit
• Makes your bras last longer, because the band does the supporting — not the straps

Found Your Size? Here’s What to Shop Next

Once you know your size, you can shop with confidence:

• A and B cup: Try our Seamless Bras and T-Shirt Bras for an invisible, smooth finish.
• C cup: Our Light Padded Bras and Non-Padded Bras offer everyday comfort and shape.
• D cup and above: Our Minimizer Bras are built for heavy bust support, full coverage, and anti-sagging lift.
• Pregnant or nursing: See our Maternity & Nursing Bras for gentle, flexible support.

Still Not Sure? Use Our Free Calculator

Skip the maths entirely. Enter your two measurements into our free Bra Size Calculator for Bangladeshi Women and get your exact size in seconds. If your result feels off, you can always chat with our size expert on WhatsApp — we’re happy to help you get it right before you order.

All Sassy Secret BD orders come with Cash on Delivery, 100% discreet packaging, and a 3-Day Easy Exchange — so if the fit isn’t perfect, we’ll sort it out.

Frequently Asked Questions

How do I measure my bra size at home in Bangladesh?

Measure your underbust (ribcage, snug) and your overbust (fullest part of the bust, loose) in inches. Add 4 to an even underbust or 5 to an odd underbust to get your band size, then subtract the band from the overbust to find your cup. For example, a 30-inch underbust and 37-inch overbust gives a 34C.

What is the +4/5 method for bra sizing?

The +4/5 method is the standard sizing system for imported bras in Bangladesh. If your underbust measurement is even, you add 4 inches; if it’s odd, you add 5 inches, to calculate your band size.

Why does my measured size differ from the bra I usually wear?

Many women in Bangladesh wear a band that is too loose and a cup that is too small. Your measured size is more accurate. If you’re switching, trust the measurement and use our 3-Day Easy Exchange if you need to adjust.

How often should I measure my bra size?

Re-measure every 6–12 months, or after any significant weight change, pregnancy, or breastfeeding, as your size can change over time.