Free bra calculator to estimate bra size. Instant results in your browser — no signup.
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Enter values and calculate an instant answer.
Enter the values, then calculate.
Results update when you click Estimate.
Primary answer and useful breakdowns.
Estimated size
34D
US sizing estimate — brands vary
Fit tip
Use a soft tape snug on the ribcage and level across the fullest bust point. Always check brand charts.
Free bra calculator to estimate bra size. Instant results in your browser — no signup. Even band from underbust; cup from bust − band difference.
Even band from underbust; cup from bust − band difference.
34 in band + 38 in bust → about 34D.
It helps you estimate bra size. Typical search: “bra size calculator”.
Estimate bra size using underbust; bust; sizing system. Result: band/cup size.