The size of pizza is usually calculated according to its diameter, and the unit converted into inches is the size of pizza. The diameter of an 8-inch pizza is: 20.32 cm. Generally speaking, how many inches of pizza are we talking about? Actually, they are British inches, not municipal inches. 1 inch ≈2.54 cm, while 1 inch is about 3.33 cm. So the diameter of an eight-inch pizza is 8x2.54=20.32 cm.

For example, an 8-inch pizza refers to a pizza with a diameter of 8 inches. Generally speaking, people will cut the pizza into 9 equal parts, and each part is about the size of an ordinary plate. Such a pizza may be enough for a person of medium height.

The historical origin and innovative development of pizza;

"Pizza" is a kind of food with Italian flavor made of special sauces and fillings, but in fact, this food has transcended language and cultural barriers and become a global snack, which is loved by consumers all over the world.

Pizza comes from bread, which has played an important role as a staple food in western history. It is not always static in the long river of time, but by adding different ingredients to better meet people's needs and hobbies. Historians found a similar transitional food from bread to pizza in Sardinia, Italy, 3000 years ago.

The innovation of pizza still comes from the addition of tomatoes (in fact, there is a kind of fish that is replaced in the position of tomatoes). Naples first brought this change, which can be said to be the origin of modern pizza.

But in the end, it was a Neapolitan chef who made a pizzaMargherita specially for Queen Seville at 1889 and named it after the Queen.