Chest circumference is also another name for a bra. It is a kind of underwear used by women. Also known as bra, bra or bra. Sometimes replaced by "underwear", its function is to cover and support the breast. Bras originated in France and are called "Brassière", but now they are generally referred to as "Bra".

1. Measurement of bust size: bust size is obtained by taking the bust point, namely BP point (protruding point), and measuring the bust fullness horizontally for one week with a soft tape measure. Lower bust size: measure the bottom of the chest horizontally with a soft tape measure, which is the lower bust size.

2. Determine the bra cup: choose a cup when it is about 10cm, b cup when it is about 12.5cm, c cup when it is about 15cm, d cup when it is about 17.5cm, e cup when it is about 20cm, and f cup when it is over 20cm.

3. The bust size table is compared with the following bust size table:

Precautions:

Women often get fat or thin because of pregnancy and slimming, so they should measure their chest circumference every three months. The full bust minus the lower bust is the cup size. If the difference between the whole bust and the lower bust is 10 cm, you should use a mask. AA, a, b, c, D E and f all refer to the size of the cup. You can determine your own cup size according to the table below.

Cup size aaab, bcd, ef.

The difference between full bust and lower bust (cm).

7.5 10 12.5 15 17.5 20 22.5。