20 inch pizza
A 20-inch pizza is a party size pie: about 314 square inches, usually 10 slices, enough for 5 to 8 people.
The numbers
- Diameter
- 20 in 50.8 cm
- Area
- 314 sq in
- Around the crust
- 62.8 in
- Usual slices
- 10
- Each slice
- 31.4 sq in
- Feeds
- 5 to 8 people
See a 20 inch pizza at real size
This is how much space a 20-inch pizza takes up. On a phone, scroll around the box to see the whole pie.
for scale
How many slices in a 20 inch pizza?
Most pizzerias cut a 20-inch pizza into 10 slices. Party pies are often square-cut into many more small pieces. Ask the shop how they cut theirs. Cut into 10, each slice is about 31.4 square inches with 6.3 inches of crust along its outer edge.
How many people does it feed?
Plan on a 20-inch pizza feeding 5 to 8 people. An adult with an average appetite eats about 58 square inches of pizza, which is three slices of a large. Light eaters and kids eat about two thirds of that.
How it compares to other sizes
Pizza gets bigger faster than the inches suggest, because area grows with the square of the diameter. A 20-inch pizza has 23% more pizza than an 18-inch. Step up to a 22-inch and you get 21% more again.
Two 18-inch pizzas give you 509 square inches against 314 for one 20-inch. The pair is 62% more pizza, so the question is whether it costs less than that much extra. Put your shop's prices into the size comparison tool to see which is the better deal.
20 inch pizzas for a party
These are for adults with average appetites. For a mix of adults and kids, or a party with other food, use the party calculator.
How much dough for a 20 inch pizza?
Making one at home? A New York style 20-inch pizza needs a dough ball of about 800 g (28.2 oz). The pizza dough calculator gives the full recipe for any style.
Questions about 20 inch pizza
How big is a 20 inch pizza?
A 20-inch pizza measures 20 inches (50.8 cm) from edge to edge through the middle. Its area is about 314 square inches and it is 62.8 inches around the crust.
How many slices in a 20 inch pizza?
Most shops cut a 20-inch pizza into 10 slices. Party pies are often square-cut into many more small pieces. Ask the shop how they cut theirs.
How many people does a 20 inch pizza feed?
A 20-inch pizza feeds 5 to 8 people. The lower number is for adults with average appetites and the higher number is for light eaters or kids.
What size is a 20 inch pizza?
Most US pizzerias would call a 20-inch pizza a party size. Names are not standard, so one shop's medium can be another's large. Always check the inches on the menu.
Is a 20 inch pizza much bigger than an 18 inch?
Yes. A 20-inch pizza has 23% more pizza than an 18-inch one, even though it is only 2 inches wider. Area grows with the square of the diameter.
How much dough for a 20 inch pizza?
About 800 g (28.2 oz) of dough for a New York style 20-inch pizza. Thin crust needs about a quarter less and pan pizza about a third more.