Step 1: Determine Your Band Size
While braless or wearing a non-padded bra, measure around the bottom of the band, directly under your bust. The measuring tape should be level and very snug. Round to the nearest whole number. If the number is even, add four inches. If it’s odd, add five. Your band size is the sum of this calculation. (So if you measured 32 inches, your band size is 36. If you measured 33 inches, your band size is 38.) Show me how.
Step 2: Take Your Bust Measurement
Wrap the measuring tape somewhat loosely around the fullest part of your chest (at nipple level). Round to the nearest whole number. Show me how.
Step 3: Calculate Your Cup Size
Subtract your band size from your bust measurement and refer to chart. Example: 37 inches (bust) – 34 inches (band) = 3 inches. That’s a 34C.