Professional Bra Size Calculator
Use our free, accurate bra size calculator for personalized recommendations. Supports multiple measurement systems for different body types.
| Underbust (cm) | United States (US) | United Kingdom (UK) | Europe (EU) | France (FR) | Australia (AU) |
|---|---|---|---|---|---|
| 63-67 | 28 | 28 | 60 | 75 | 6 |
| 68-72 | 30 | 30 | 65 | 80 | 8 |
| 73-77 | 32 | 32 | 70 | 85 | 10 |
| 78-82 | 34 | 34 | 75 | 90 | 12 |
| 83-87 | 36 | 36 | 80 | 95 | 14 |
| 88-92 | 38 | 38 | 85 | 100 | 16 |
| 93-97 | 40 | 40 | 90 | 105 | 18 |
| 98-102 | 42 | 42 | 95 | 110 | 20 |
Why Choose Our Bra Size Calculator?
Accurate Calculations
Based on professional bra sizing formulas, considering body type and age factors for the most accurate size recommendations.
Multiple System Support
Supports US, UK, European, French, Australian and other sizing systems to meet global user needs.
Personalized Recommendations
Provides personalized adjustments based on different body types (petite, average, plus-size, athletic) and age groups.
Frequently Asked Questions
How often should I remeasure my bra size?
We recommend remeasuring every 6 months, or when experiencing weight changes of 5kg or more, pregnancy, breastfeeding, or other body changes.
What are sister sizes?
Sister sizes are bra sizes that have the same cup volume but different band sizes. For example, the sister sizes of 34C are 32D and 36B.
How accurate are the calculation results?
Our calculator is based on professional sizing formulas with high accuracy. However, since different brands may vary, we recommend trying on or consulting brand size charts before purchasing.