Bra Size Calculator
Find your perfect bra size with accurate measurements. Supports inches and centimeters with US/UK and EU size conversions.
Bra Size Calculator
Enter your underbust and bust measurements. Supports inches and centimeters.
Your Results
Calculation Method
- • Band Size: Round underbust to nearest even inch (US/UK) or nearest 5cm (EU)
- • Cup Size: Bust minus underbust difference mapped to letter (A, B, C...)
Cup Size Reference (Inch Difference)
How to Calculate
Calculation Formula
- Accurately measure underbust (snug but not tight)
- Measure bust at fullest point
- Select measurement unit (inches or centimeters)
- View calculated results and size recommendations
Important Considerations
⚠️ Important Notice
Different brands may have varying size standards. We recommend trying on or checking specific brand size charts before purchasing.
Proper Measuring
Stand naturally, use a soft measuring tape horizontally around your body - not too tight or loose
Sister Sizes
Adjacent sizes may also fit, e.g., for 34C try 32D or 36B
Example Cases
Example 1: Standard Measurement
Example 2: Metric Units
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