Bra Size Calculator
Estimate a starting band and cup size from underbust and bust measurements.
Starting size estimate
34D
try adjacent sister sizes for fit
Rounded band34 in
Bust-to-band difference4 in
Metric band equivalent86.4 cm
This is a rough measurement-based starting point. Sizing, fit, and labels vary across brands and countries.
About the Bra Size Calculator
Estimate a starting band and cup size from underbust and bust measurements.
It runs entirely in your browser — nothing you type is sent to a server — and the result updates as you edit the inputs. Estimates are for educational and informational purposes only; see ourdisclaimer.
Common searches
- band size
- cup size
- bra fitting
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