The cup size is a letter like A, B, C, etc. and relates
to the difference between your upper rib cage measurement and the actual
circumference of the bust. You need to have an accurate measurement of
both elements to get the perfect fit.
Most large department stores have women who are trained
that can get an accurate
bra size fitting for you at no charge. If you are
embarrassed or don't have a place to have this measurement done for you,
just buy a tape measure. Out of the two measurements you need to have for
that perfect fit there you need to have an accurate measurement of both.
If you don't think you can do this accurately on your own then ask a
trusted friend for help.
When measuring the for the band size measurement there
are two methods. The most common of the two is to run a tape measure
around you just beneath the breasts. You want to make sure that the tape
measure is straight across your back and not slanted or wrinkled in any
way. Make sure it is snug but not too tight. Once you have this number add
5 inches to it. Now you have your chest size. You can also use the same
procedure but do it right above the breasts and under the armpits. It used
to be that odd numbers like 31 or 33 had to be rounded up, but in many
stores today you can find "half" or odd sizes, if not use the old method
and round up.
To determine your cup size you should be wearing either
no bra or with a supportive unpadded bra. Run the tape measure around the
fullest part of your breasts. Now subtract your rib cage measurement from
this number and this is your cup size. If you got a 2 you are a B cup, 3
is C cup and so on.
Once you know your proper size, it is time to try bras
on. You should try a variety of styles to find the ones that fit you best.
Different manufacturer's sizes run differently and the style of the bra
along with the texture of your breasts need to be taken into consideration
to achieve the perfect fit.