About this tool

The Bra Size Calculator is a free browser-based tool that helps users find a starting bra size from their measurements. It supports inches and centimeters, offers quick two-measurement and optional six-measurement methods, and includes international size-label references, size charts, conversion guides, and practical fit checks. Measurements are calculated in the browser and are not uploaded. Results are a starting point for trying bras, since fit varies by brand and shape.