The number portion of the size the 34 in 34c for example represents your band size or the measurement around your rib cage just below your breasts. They increase 25 cm a step except for the initial cup size letters. For example in a bra size 32d the 32 is the band size. The sister sizes of a bra are alternative sizes which essentially have the same cup volume as the original bra size even if the band size and the cup letter are different. See this image for knowing band and bust size they are measured in inch suppose band size x inch bust size y inch then find difference between them ie x y then this difference represent cup size which will be denoted by combination of. In determining your sister size you have the option to go one size up or one size down.
In american lingerie boutiques department stores and on bra shopping sites band sizes typically range from 28 to 56. The way that the cup letters go up will vary between brands some brands will use cups ddd others will use e cups and so on this makes things complicated. Bra cup sizes were first invented in 1932 while band sizes became popular in the 1940s. Plus find your sister sizes for a perfect fit. The vast majority of bra manufacturers in the united states create band sizes in the 32 to 42 range with newer products emerging or brands creating more sizes to accommodate more women. The farther along in the alphabet the bigger the cup.
Ok so first things first this is a bra size. To get this number pull a soft measuring tape tightly around the bottom of your bra band while wearing it. Bra sizes usually consist of a number indicating the size of the band around the womans torso and one or more letters that indicate the breast cup size. The letters are used to determine the cup size of the bra. The band or frame size is the firm circumference fitted not tightly measured directly underneath the breasts. Whats your bra size.
Get detailed information on how to measure and fit a bra. Bra size charts and bra cup size calculator for us uk south america european sizes like italian and french sizes in inch and centimeters. The number is always at the beginning and this refers to the back band and how many inches it measures. You deserve great support and comfort. This is relates to the breast mass colloquially how big your boobs are. The bust size is the loose circumference measured around the chest over the fullest part of the breasts while standing straight with arms to the side and wearing a properly fitted bra.
It looks a little funny with its mix of numbers and letters but there is no need to be scared once you know what they mean it all makes sense we promise. Traditional bra sizes are a combination of letters and numbers. Use the following to convert the bra sizes betweem different locations. Japanese cup sizes begin with aa for 75125 cm difference and precedes the bust size for example b75 instead of 75b. The bra size is determined by the band size and cup size.