Bra Size Calculator

The tool accepts underbust and bust measurements in chosen units (cm or in) and outputs a standard bra size label. It supports multiple regional size charts (US, EU, UK) to accommodate different markets. Conceptually, the system converts raw measurements into two components: band size and cup size, then combines them into a label such as 34B. It handles unit conversions, validates numeric inputs, and exposes optional regional charts for accuracy across brands. The core value lies in providing a consistent sizing reference that reduces guesswork for shoppers and informs retailers about stock-keeping decisions. In practical use, a consumer can enter measurements during online shopping to receive an immediate size suggestion, while a retailer can generate size tables for cataloging and in-store support. Unique value comes from supporting multiple regional charts and offering a clear, auditable calculation trail that minimizes returns caused by incorrect sizing. Core features include numeric validation, unit handling, chart-based mapping, and export-ready results for catalogs or reports. Use cases span ecommerce product pages, fitting sessions, and inventory planning. By standardizing the input-to-size pipeline, the tool aligns customer expectations with product offerings and improves sizing confidence across channels.