How many pizzas required for 20 people

When it comes to hosting an event or gathering for 20 people, one question that often arises is, “How many pizzas do I need?” Pizza is a crowd-pleaser, and getting the quantity just right can be a bit tricky. In this comprehensive guide, we will provide you with all the details and considerations you need to determine the number of pizzas required to satisfy the appetites of 20 hungry individuals.

Factors to Consider

To calculate the number of pizzas needed for your gathering, several factors come into play:

Pizza Size

The size of the pizza you choose is a crucial factor. Pizzas come in various sizes, such as small (10 inches), medium (12 inch pizza), large (14 inches), and extra-large (16 inch pizza). The size of the pizza slices will also vary accordingly.

Appetite of Your Guests

Consider the appetite of your guests. Are they light eaters or hearty eaters? Some people can devour multiple slices, while others may be satisfied with just one or two.

Variety of Toppings

The number of toppings on each pizza can affect how many slices a person is likely to eat. Pizzas with a wide variety of toppings might lead to guests consuming fewer slices compared to a simple cheese or pepperoni pizza.

Other Food Options

Are you serving other dishes besides pizza? If there are appetizers, side dishes, and desserts, it might reduce the number of pizza slices each person consumes.

Dietary Restrictions

Consider any dietary restrictions among your guests. Some individuals may prefer or need gluten-free, vegetarian, or vegan options.

Calculating the Number of Pizzas

Now, let’s get down to the calculation. To ensure that you have enough pizzas for 20 people, you can follow these steps:

Determine the Pizza Size

First, decide on the size of the pizza you want to serve. Let’s assume you’re going with a medium-sized pizza (12 inches) as it’s a popular choice for most gatherings.

Estimate Slices per Person

On average, a person typically consumes about 2-3 slices of medium-sized pizza. If your guests are particularly hungry, you might consider planning for 3 slices per person.

Calculate the Total Slices

Now, multiply the number of guests (20) by the estimated slices per person (3). That would be 20 x 3 = 60 slices.

Determine Slices per Pizza

Next, you need to find out how many slices are in a medium-sized pizza. A 12-inch pizza typically has 8 slices.

Divide the Total Slices

To find out how many pizzas you need, divide the total slices required (60) by the number of slices per pizza (8). The calculation is 60 รท 8 = 7.5.

Since you can’t order half a pizza, you’ll need to round up. In this case, you should order 8 medium-sized pizzas to feed 20 people adequately.

Accounting for Variability

Keep in mind that the calculation above is a general estimate. There can be variations based on the factors we mentioned earlier. It’s always a good idea to have some extra pizzas on hand, just in case your guests are hungrier than expected or have diverse preferences.

Accommodating Dietary Preferences

To ensure all your guests are satisfied, consider ordering a variety of pizzas, including options for those with dietary restrictions. Offering gluten-free or vegetarian pizzas can be a thoughtful touch that accommodates different needs.


In summary, the number of pizzas required for 20 people depends on various factors such as pizza size, guest appetite, toppings, additional food options, and dietary preferences.

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