Bra Size Chart Pakistan + Calculator: Find Your Perfect Size in Inches and cm

By Pretty Wear Team · Reviewed by our fit specialists · Updated 4 Nov 2026

Most bra size charts online are written for UK or US shoppers and never explain how Pakistani sizes (32 to 48) fit in. On this page you get a calculator, a band size chart in both inches and cm, a cup size chart, sister sizes and a quick fit test, all in one place.

Quick size check (inches or cm)

Measure your underbust (just under the bust, where the band sits) and your bust (the fullest part of the chest, tape loose, not squeezing), then enter both below.

What a bra size means: band and cup

A bra size has two parts, for example 36C. The 36 is the band size (the measurement around your ribcage, in inches). The C is the cup size, which comes from the difference between your bust and your band. Pakistani brands use the same band numbers as the UK and US (32, 34, 36, 38 and so on). Cup letters from A to DD usually match too; beyond that, brands differ.

Band size chart: underbust in inches and cm

Round your underbust to the nearest whole inch. If that number is odd, go up to the next even number (39 becomes 40). The band is always an even number (30, 32, 34 …).

Cup size chart

Subtract your band size from your bust measurement (both in inches).

Cups above DD (E, F) are labelled differently by different brands, so always check the size chart on the product page for those sizes.

Two worked examples

• Underbust 84 cm, bust 94 cm. 84 cm is about 33 inches, which is odd, so the band is 34. 94 cm is about 37 inches. 37 – 34 = 3, so the cup is C. Size: 34C.
• Underbust 100 cm, bust 112 cm. 100 cm is about 39 inches, odd, so the band is 40. 112 cm is about 44 inches. 44 – 40 = 4, so the cup is D. Size: 40D.

Sister sizes: same cup volume, different band

If a bra feels tight in the band but the cups fit, or the other way round, try a sister size. Go down one band size and up one cup letter, or up one band size and down one cup letter. The cup volume stays the same.

Letter sizes in Pakistan: M, L, XL, 2XL, 3XL

Many seamless and stretch bras use letter sizes instead of band and cup. These roughly point to a band range, but brands differ, so use the product page chart. For a rough conversion see our plus size bra size guide, and for one-size styles read what a free size bra is.

How to measure at home

1. Use a soft tailor’s tape and wear a non-padded bra or none.
2. Underbust: breathe out, wrap the tape snugly around your ribcage right under the bust, keeping it level.
3. Bust: wrap the tape loosely around the fullest part, without pressing.
4. Enter both in the calculator above.

Our step-by-step guides with photos: how to measure your bra size at home and bra size kaise napein (Roman Urdu).

Check the fit before you keep a bra

• Band: on the loosest hook you should fit only two fingers under it, and it should sit level, not ride up your back.
• Cups: your breast should fill the cup with no spilling over the top or sides and no empty gaps.
• Wire (if any): it should sit flat against the ribcage, around the breast and not on it.
• Straps: they should not dig in. Most of the support comes from the band, not the straps.

Re-measure every 6 months, or after weight change, pregnancy or breastfeeding.

Shop by size

• Sizes 32 to 38: Bras and padded bras.
• Sizes 38 to 46: Plus size bras and our big size bra guide for 44, 46 and 48.
• Band slightly tight: a bra extender can help while you decide on a new size.

Our free tools: Bra Size Calculator, Size Finder, Gift Finder and Period Tracker.

Frequently asked questions

How do I find my bra size in cm?

Divide your underbust in cm by 2.54 to get inches, then round to the nearest even number: that is your band. Convert your bust to inches too and subtract the band. The difference is your cup (1 inch = A, 2 = B, 3 = C, 4 = D, 5 = DD).

Are Pakistani bra sizes the same as UK or US sizes?

Band numbers (32, 34, 36 …) are the same. Cup letters from A to DD usually match, but beyond DD brands label cups differently.

What is a sister size?

It is a size with the same cup volume but a different band, for example 36C, 34D and 38B.

How often should I measure my bra size?

Every 6 months, or whenever your weight changes or you are pregnant or breastfeeding.

What is the biggest bra size available in Pakistan?

Many local shops stop at 40 or 42. Online you can find 44 and 46, and double sizes such as 46-48. See our big size bra guide for details.