How Big Is A 12 Inch Pizza? Complete Guide!

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There are three main types of sizes for pizza. They consist of small, medium, large and extra-large. A 12-inch pizza belongs to the medium size.

So, how big is a 12 inch pizza? The area of a 12-inch pizza is 113.04 square inches. A 12-inch pizza is a lot bigger than an 8-inch pizza.

This post will analyze in detail the size of a 12-inch pizza. Besides that, we also recommend tips to choose a 12-inch pizza for your group.

Now, keep reading to explore!

What Is The Formula For A 12-inch pizza

What Is The Formula For A 12-inch pizza?

Maybe many of you want to know how many squares of a 12-inch pizza.

The total area of a pizza is: π*r*r or π*r2

In other words, you will get the diameter of a 12-inch pizza (12 inches). Then, keep dividing 12 inches by two to have the radius (r). Finally, it provides you with 6 inches in diameter.

It’s time to do a simple calculation:

π * r2 = 3.14 * 62 = 113.04 square inches

Next, the simple math for an 10-inch pizza is: π*r2= 3.14*52 = 78.5 square inches

As the results show, the difference between the two types of pizza is considerably big.

When you divide 113 by 78.5, you will have 1.44.

It means that a 12-inch pizza is 1.44 times larger than a 10-inch pizza.

How Many Slices Are There In A 12-inch Pizza?

How Big Is A 12 Inch Pizza?

Normally, one 12-inch pizza will have 8 slices in total. However, if you do not like this number, there are other ways of cutting this pizza.

You can divide one 12-inch pizza into 6 slices if you like big servings. 

Cutting it into 16 slices is also a good idea if you prefer smaller servings.

Read More: How Many Slices Are In A 12 Inch Pizza?

How Much Larger Is A 14-inch Pizza Than A 12-inch One?

You have a mathematical formula for the area of circle pizza: π*r*r or π*r2

For a 14-inch pizza, the diameter (r) is seven when you divide 14 by two.

Applying these numbers in the formula, you will have the total area of a 14-inch pizza:

π*r2  = 3.14 * 72 = 153.86 square inches

153.86 / 113.04 = 1.36

Then, a 14-inch pizza is 1.36 times as big as a 12-inch pizza.

How To Serve With A 12-inch Pizza?

Confirming the number of slices of a 12-inch pizza

The most popular number of slices for a medium pizza with 12 inches is 8 slices.

However, you can also cut this pizza into 6 big slices or 16 small slices to match your preference.

Yet, it can also depend on the pizza store you will order from. Then, it is always a great idea to confirm how many slices beforehand.

How Big Is A 12 Inch Pizza

The number of people in your group

A 12-inch pizza can serve from 3 to 4 people.

Therefore, if the number of people is just smaller than 3 or bigger than 4, you should consider a small 10-inch pizza or a large 14-inch pizza.

The age of each person

It is not enough to count the number of people in your group. You also have to take notice of their age.

For example, is there anyone who is a kid? What if he or she gets distracted by something else and does not even have a seat to eat pizza?

All of these factors will have an impact on what type of pizza you will order. Then, you can make sure that a 12-inch pizza is too small or large to serve everybody.

The appetite of all people

A common pizza appetite includes any slice from 1 to 5 because people do not have similar appetites.

It is always a good idea to take notice of everyone’s appetites. Then, you can consider whether ordering a 12-inch pizza can satisfy someone’s appetite.


A 12-inch pizza is large enough for up to 4 eaters. But if there is someone with a great appetite, you can consider a bigger pizza with a bonus in price.

In addition to the size, you also need to consider other factors when you order a pizza. They can be sauces, toppings, and accompaniments.

Now, pick up and order a pizza from a nearby store. Have a nice meal! 

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