Exact Bra Size & Fitting Calculator
Up to 80% of women wear an ill-fitting bra size leading to back strain. Find your true cup and band size in seconds.
Measure snugly around your ribcage directly beneath your bust parallel to the ground.
Measure loosely around the fullest part of your chest without compressing tissue.
Sister Sizes Matrix
Equivalent cup volume with different band snugness depending on lingerie cut:
4 Golden Rules for the Perfect Fit
If the band rides up in the back, it is too loose; size down in the band.
If breast tissue spills over the top or sides, size up one cup (e.g. C instead of B).
80% of breast support comes from the band, not straps. Straps should not dig in.
The center bridge between cups must rest flat against your sternum without hovering.
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