Bra Size exists to answer one question accurately, for free, for any woman in India: what bra size am I actually wearing? Most sizing guides online are written for US or UK bodies and shopping habits — we wanted a tool built around the measuring, sizing and shopping reality in India.
Band and cup sizes are simple arithmetic once you have two honest measurements, but most guides bury that arithmetic under outdated rules and inconsistent brand sizing. Bra Size does the calculation correctly, explains it in plain language, and shows how your result maps across India, the UK, the US and the EU — in one free tool, with nothing to sign up for.
It is not a substitute for an in-person fitting, a medical device, or a diagnostic tool. It gives a mathematically sound starting estimate from the two measurements you provide. Please read our disclaimer for the full picture.
Bra Size is part of the Calculations.one family of single-purpose calculators. We keep each site small, fast, private by design, and free of unnecessary sign-ups.
Spotted an error, or have a suggestion? Visit our contact page — we read every message ourselves.