The measurements must be made against the skin as opposed to over clothing:
1. To find your band size (32, 34, 36 etc.), measure directly under the bust and straight across the back. Hold the tape measure firmly. Add 4 inches to an even number and 5 inches to an odd number. This is your band size.
2. To find out your bust measurement which will determine your cup size, measure the fullest part of the bust in inches. This must a looser measurement to step 1. In fact the tape measure should almost slip off to get the best results.
3. Subtract your band size (step 1) from the second measurement (step 2). The difference determines your cup size. Don't be scared of our corsets: they're made to work hard and to reduce your waist by 3 to 4 inches.
Difference between back size and bust measurement in inches Cup size Same = A cup Cup size 1" more = B cupCup size 2" more = C cup Cup size 3" more = D cupCup size 4" more = E cup (or DD)Cup size 5" more = F cup (or DDD)