What is the standard diameter of the pizzas served?

The standard diameter of the pizzas served is 12 inches. This size is commonly chosen for personal-sized pizzas, making it a familiar option that balances portioning and sharing. A 12-inch pizza typically yields enough slices—usually around 8—that can serve an individual comfortably or can be shared among a small group. It's also a popular size in many pizzerias and corresponds to standard expectations from customers who are familiar with pizza offerings, which often influence sales and menu design. Having this size as a standard helps in ensuring consistency in presentation and satisfaction for diners.