Bra Size Calculator
Get an estimated bra size from underbust and bust measurements, using a simple rule of thumb. Sizing varies by brand.
Measure underbust (band) snugly around ribcage. Measure bust at fullest point, tape parallel to ground. Try multiple sizes as sizing varies by brand. This is an estimate using a simple inch-based rule of thumb, not an industry standard (band = underbust rounded to an even number, cup = bust minus band); cup letters beyond DD differ between brands and countries.