12″ pizza

A 12 inch pizza measures 12 inches (30.5 cm) in diameter, classified as a medium pizza by most US pizzerias. This page covers the exact dimensions, typical slice count, and how a 12 inch pizza compares to other common sizes.

Dimensions

Pizza size comparison

Because pizza area increases with the square of the diameter, a 12 inch pizza has about 44% more surface area than a 10 inch pizza, despite the diameter only increasing by 2 inches. This is why upgrading pizza sizes often provides significantly more food than the size difference alone suggests.

Slice size

A 12 inch pizza cut into 8 slices yields pieces roughly 4.7 inches (12 cm) long along the outer crust edge, a common slice size for personal servings at a casual meal.

12 inch vs 16 inch pizza

A 16 inch pizza has nearly 78% more surface area than a 12 inch pizza, even though its diameter is only 4 inches larger, because pizza size scales by area rather than by diameter alone.

Frequently asked questions

How big is a 12 inch pizza?

12 inches (30.5 cm) in diameter, typically classified as a medium size and cut into 8 slices.

How many slices are in a 12 inch pizza?

Usually 8 slices, though some pizzerias cut medium pizzas into 6 larger slices instead.

How much bigger is a 16 inch pizza than a 12 inch pizza?

Almost 78% more surface area, since pizza size scales with the square of the diameter, not the diameter itself.

How many people does a 12 inch pizza feed?

Typically 2 to 3 people, depending on appetite and whether other food is served alongside it.

What is the area of a 12 inch pizza?

Approximately 113 square inches (730 square cm).

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