To find your band size, wrap a soft measuring tape just below your bust. If the measurement is between 26-32 inches, add 4 or 5 to get an even number. If the measurement is between 33-38 inches, add 2 or 3 to get an even number. If the measurement is 39 inches or more, add 0 or 1 to get an even number. All bra bands are even numbers, so if you get an odd number, you've calculated incorrectly.
To find your cup size, measure around the fullest part of your chest. Subtract your original band measurement (the band measurement you got before you calculated your band size) from your bust measurement. 0=AA, 1=A, 2=B, 3=C, 4=D, 5=DD, 6=DDD/F, 7=G, 8=H
Combine your calculated band size and your calculated cup size to find your bra size.
