✦ Independent Bra Sizing & Fit Reference
Stop wearing a bra that hurts.
Use body measurements as a starting point, compare common sizing systems, and check the actual fit of the garment.
✓ Measurement-Based Starting Points
✓ Client-Side Privacy
✓ Common US, UK, EU & AU Conventions
Quick Estimate
2-Point Mode
Quick Starting Point
Ribcage anchor
Apex circumference
Estimated US Starting Size
32D
UK: 32D · EU: 70D
Refine With 4 Measurements →
Fit Reality
Why Your Current Bra May Not Fit
Bra fit depends on the relationship between your ribcage, bust volume, cup depth, wire width, and band tension—not simply a letter and number.
× Common Retail Error
- Band can be too loose and ride up the back.
- Straps may compensate for an unsupported band.
- Shallow or undersized cups can create spillage and pressure.
✓ BraSizePRO Precision Method
- Uses the snug underbust as the primary band anchor.
- Checks bust-to-band difference for cup sizing.
- Considers fit symptoms and international sizing systems.
Sizing Suite
Sizing Calculators
Interactive calculations run directly in your browser.
Bra Fit Checker & Problem Solver
Open Calculator →Bra Size to Measurements
Open Calculator →Sister Size Calculator
Open Calculator →Brand Size Converter
Open Calculator →Sports Bra Calculator
Open Calculator →Maternity & Nursing Bra Calculator
Open Calculator →Plus-Size Bra Calculator
Open Calculator →Men's Bra Calculator
Open Calculator →First Bra Calculator
Open Calculator →Panty Size Calculator
Open Calculator →Matching Set Calculator
Open Calculator →Swimwear Size Calculator
Open Calculator →Shapewear Size Calculator
Open Calculator →
Sizing Guides
View Universal Charts →
Fitting Guides & Charts
Bra Sizing Methodology
Read Guide →How to Measure Bra Size at Home
Read Guide →How Bra Sizes Are Determined
Read Guide →Bra Cup Size Guide (AA to O)
Read Guide →How to Measure Band Size Correctly
Read Guide →Universal Bra Measurement Chart
Read Guide →Sister Sizing Explained
Read Guide →9 Signs Your Bra Doesn't Fit
Read Guide →How to Measure for a Sports Bra
Read Guide →Bra Size to Bust Size Chart
Read Guide →Selected Brand Size References
Compare stated brand sizing systems alongside your calculated starting size.
Panache
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
Freya
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
Wacoal
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
Victoria's Secret
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
Natori
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
ThirdLove
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
Aerie
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
Skims
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
Elomi
Sizing and fit can vary by style. Check the brand's current product chart before ordering.
Curvy Kate
Sizing and fit can vary by style. Check the brand's current product chart before ordering.