An 8-inch cake is about 20 cm in diameter. Because the birthday cake came from the west, the inch in the cake shop is actually inches, and 1 inch is only 2.54 centimeters in centimeters, so 8 inches is about 20 centimeters. Suitable for 3-5 people. If calculated by weight, it is equivalent to two kilograms, which is about 900 grams. Suitable for birthday parties, various festivals, visiting relatives and friends.

There are two kinds of inches, one is inch (the British unit of length) and the other is inch (the traditional unit of length in China). In daily life, 8 inches mostly refers to the size of photos, or the diameter of round objects such as cakes and pizzas.

The comparison of cake size is as follows:

1, 6 inches is about15 cm; Suitable for 2-3 people.

2, 8 inches is about 20CM, suitable for 3-5 people.

3, 10 inch is about 25CM, suitable for 5-8 people.

4. 12 inch is about 30CM, which is suitable for 8- 10 people.

5, 14 inch is about 35.5CM, which is suitable for 10- 12 people.

6, 16 inch is about 40.5CM, which is suitable for more than 12 people and suitable for various medium-sized celebrations.

7. 18 inch is about 45.5CM；; Suitable for people over 15, suitable for various large-scale celebrations, such as wedding eggs.

Cake.