How to calculate your cup size and burst?
How to Measure Your Bra SizeStep 1 - Bra size:
Measure around the body directly under the bust while wearing a bra. If the measurement is an odd number add 5", if an even number add 4"... e.g. 35" + 5" = 40", 36" + 4" = 40". This is now your bra size.
Step 2 - Cup size:
For the cup size, measure the fullest part of the bust, subtract your bra size from your cup measurement. If there is no difference you require an A cup. Consult the cup size chart below.
No Difference - A Cup
1" - B Cup
2" (5 cms) - C Cup
3" (8 cms) - D Cup
4" (10 cms) - DD Cup
5" (13 cms) - E Cup
6" ( 15 cms) - F Cup
7" (18 cms) - G Cup
Speed Calculator
http://www.lindasonline.com/bra-fitting-calculator.html
Bra Convertor
http://www.85b.org/bra_conv.php