1. What is USA Bra Size?

The USA bra size system consists of a band size (number) and a cup size (letter). The band size represents the measurement around the ribcage, while the cup size indicates the difference between bust and band measurements.

2. How Does the Calculator Work?

The calculator uses the standard USA bra size formula:

Where:

• \( Band\ Size \) — Measurement under bust (inches), rounded to nearest even number
• \( Cup\ Size \) — Difference between bust and band measurements (1 inch = A, 2 = B, etc.)

Explanation: The system accounts for both torso circumference and breast volume to determine proper fit.

3. Importance of Correct Bra Size

Details: Wearing the correct bra size improves comfort, posture, and breast support while preventing back pain and tissue damage from ill-fitting bras.

4. Using the Calculator

Tips: Measure band size snugly under bust, and bust size loosely at fullest part. Enter both measurements in inches for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: How often should I measure my bra size?
A: Recommended every 6-12 months or after significant weight changes, pregnancy, or breast surgery.

Q2: Why does my bra size vary between brands?
A: Different manufacturers may have slightly different sizing standards. Always check brand-specific size charts.

Q3: What if my measurement falls between band sizes?
A: Try both sizes - smaller band for more support, larger band for comfort. Use different hook positions for adjustment.

Q4: Are there limitations to this calculator?
A: This provides a starting point. Professional fitting and trying on bras is recommended for best results.

Q5: How do I know if my bra fits correctly?
A: Band should be snug but comfortable, cups should fully contain breast tissue without gaps or spillage.