knowhersize

Bra Fit by Body: Shapes, Spacing and Fit Problems

The right size can still fit badly if the shape is wrong. Start with the four-point fit check, then find your breast shape, and read the guides for wide-set or uneven breasts. Each one turns a fit problem into a specific change: a different band, cup, style or adjustment.

Check the fit

Shape and spacing

Pregnancy and nursing

Get the size in about a minute

Measure with a tape, read a bra tag, or start from a clothes size. You get the size in US, UK, AU and EU sizing, with sister sizes. Free, and nothing leaves your phone.

Open the bra size calculator

Buying a gift? Keep her sizes together on her size card.