Bra size calculator
Need measuring instructions and fit guidance? Use the full bra size calculator guide.
Try lowering your band or bust measurement slightly.
Try increasing your band or bust measurement slightly.
Cup size may need adjusting. Small changes help.
Adjust your underbust for a better band fit.
Even a 1 inch difference can change your size and comfort.
FAQ
You need your underbust measurement and your bust measurement. Measure under the bust for band fit, then around the fullest part of the bust for cup volume.
Use whichever unit is easiest for you, but use the same unit for both fields. Mixing inches and centimeters will make the result unreliable.
Bra size is based on the relationship between band and bust measurements, so even a small change can shift the cup volume or band recommendation.
Treat it as a starting size. Brand, style, cup shape, fabric, and personal comfort can all affect the best fit.
Check that the tape was level and snug, then adjust one measurement slightly and recalculate. If the size is close, sister sizes may also help.
Different regions use different size labels. Choosing a country helps the calculator format the result in the sizing system you are most likely to shop in.
