To determine your bra size accurately, follow these steps:

1. Measure Your Band Size

• Wear a non-padded, well-fitting bra (not a sports bra).
• Using a soft measuring tape, measure snugly around your ribcage directly under your bust where the bra band sits. Ensure the tape is level and parallel to the floor.
• Note the measurement in inches or centimeters.
• If the measurement is an odd number, round up or down to the nearest even number depending on your body type (round up if leaner, down if softer).
• This even number is your band size. For example, if you measure 31 inches, your band size might be 32 or 34 depending on the rounding method used (some methods add 3 inches to the measurement)

2. Measure Your Bust Size

• Measure around the fullest part of your bust, keeping the tape level and not too tight.
• Note this measurement.

3. Calculate Your Cup Size

• Subtract your band size from your bust measurement.
• The difference corresponds to your cup size:
  • 1 inch = A cup
  • 2 inches = B cup
  • 3 inches = C cup
  • 4 inches = D cup
  • 5 inches = DD/E cup, and so on

4. Combine Band and Cup Size

• Your bra size is your band size followed by your cup letter.
• For example, if your band size is 34 inches and the difference is 3 inches, your bra size is 34C

Additional Tips

• Always measure wearing a non-padded bra to get accurate natural measurements.
• If you don’t have a measuring tape, use a string or cord to mark measurements, then measure the string with a ruler

• Some brands offer half-cup sizes for more precise fitting

• Using online bra size calculators can simplify the process by inputting your measurements

This method is widely recommended and helps ensure a comfortable and supportive fit