How to Measure Bra Size

Step 1: Measure your band size

1. Put on your best-fitting nonpadded bra.
2. Wrap a soft measuring tape snugly around your ribcage, directly beneath your bust.
3. Straighten the tape so that it’s parallel to the floor.
4. Exhale deeply, as you’re aiming to get the smallest size possible. This ensures a snug, supportive band.
5. Round the measurement up to the nearest even number. This is your band size.

Step 2: Measure your cup size

1. Still wearing the bra, wrap the measuring tape around the fullest part of your bust.
2. Straighten the tape so that it’s parallel to the floor.
3. Round the measurement to the nearest whole number.

Step 3: Determine your size

Subtract your band size from your bust measurement, then use this number to pinpoint your cup size in the chart below.

Your bra measurements might be too small if:

• Your breasts spill over the tops or sides
• The center section doesn’t lie flat against your breastbone
• The straps dig into your shoulders, even after adjustment
• The underwires poke you or start to ride up