Bra Size Converter
Convert your bra size between brands instantly
Measure snugly around your ribcage (underbust) and at the fullest part of your bust.
Frequently Asked Questions
Yes, bra sizes can vary significantly between brands. A 34C in Victoria's Secret may fit differently than a 34C in Calvin Klein. Each brand uses different patterns, materials, and fit standards. Our converter accounts for these differences.
To convert US to EU bra sizes: add 15 to the band number and multiply by 2.5 to get the EU band (US 34 = EU 75). Cup letters are similar through D, then diverge: US DD = EU E, US DDD = EU F.
Not exactly. While 34D should theoretically be the same volume across brands, differences in band elasticity, cup shape, and fit philosophy mean the actual fit varies. Some brands run tighter in the band or smaller in the cup.