Bra & Lingerie Size Calculators: Bra, Sister Size, Sports Bra, Panty and Swimwear
Bra size has two parts: the band (your underbust, rounded to an even number in inches) and the cup (the difference between bust and band, 1 inch per cup). These 7 calculators find your bra and sister sizes, sports bra and panty sizes, shapewear and swimwear sizes, plus a bra size chart for sellers.
- 7 free tools
- No sign-up
- Made for India (₹, Indian sizes)
- Updated
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All bra & lingerie size calculators
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Frequently asked questions
How do I measure my bra size at home?
Measure snugly around your ribcage under the bust for the band, and around the fullest part of the bust for the bust. Each inch of difference is one cup: 1 inch is A, 2 is B, 3 is C.
What is a sister size?
A bra with the same cup volume on a different band: go down a band and up a cup (34B to 32C), or up a band and down a cup (34B to 36A).
Should a sports bra be tighter than a regular bra?
Snug, yes. A high-impact sports bra should hold firmly without digging in; if you are between sizes, choose by your band measurement.
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