How big is a cup?

If the upper bust-lower bust is about = 10cm, then it is a cup.

If the upper bust-lower bust is about = 12.5cm, then it is a B cup.

If the upper bust-lower bust is about = 15cm, then it is a C cup.

If the upper bust-lower bust is about = 17.5cm, then it is a D cup.

Every 2.5cm, and so on, as shown in the figure below:

The size of a cup depends on its depth. The bust of the highest point of the breast is subtracted from the length of the lower bust of the breast, and the size between the two cups is solved by a long enough back button.

Extended data:

Measurement method of chest circumference

1. Take off your clothes first, stand easily (but straight), put your feet together, face straight ahead, and lift your chin slightly.

2. Wrap the tape horizontally around the bust (protruding point) and slowly tighten it from loose to tight. When measuring, gently lift the breast with your hands, just like wearing a bra. At this time, you can easily measure your actual bust and bust; The chest line (the line at the bottom of the breast) can also be measured conveniently.

3. bust size (commonly known as "upper bust"): take BP point (that is, bust point) as the measuring point, and measure the fullness of the chest horizontally with a soft tape measure, which is the bust size.

4. Lower bust size: Measure the bottom of the chest horizontally with a soft tape measure, which is the lower bust size.

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