Evidence-led answers for everyday female body questions — without shame, scare tactics or sales pressure.

HerSensi tool

Bra Measurement Helper

Record underbust and bust measurements plus the actual fit problem without pretending one formula fits every brand.

Bra measurement helper

Your result

Your answer will appear here

Nothing is prefilled. Add only the information you are comfortable using in this browser.

Private by defaultThis tool runs in your browser and does not diagnose you. Avoid entering identifying medical information you do not want to use here.
Safety boundary

Measurements are a starting point; brand sizing varies and breast symptoms are not a fitting problem.

Worked example

What this looks like in real life

Two bras labelled the same size can fit differently. Measurements plus the fit symptom are more useful than relying on the label alone.

The tool keeps measurements and fit clues together; it intentionally does not promise a universal bra size conversion.

What the tool cannot tell you

Brand sizing systems vary.

Painful breast symptoms, new lumps or nipple discharge are not bra-fitting problems.

Persistent broken skin under a band needs more than size math.

Continue from the result

Use the answer, not just the calculator.