How Big is an 18 Inch Pizza? – What’s the Diameter of an 18 Inch Pizza Pie?

​​​​​​​For those of you with a pizza-craving appetite, the question on all our minds is – just how big is an 18 inch pizza? After all, when ordering takeout for parties or large groups it can be difficult to judge exactly what size of pizza would be adequate for everyone. Fortunately, we’ve got the answer! 

In this blog post, we will explain everything you need to know about ordering an 18-inch pizza so that not only do you satisfy your craving but also make sure there are plenty of leftovers as well. So if you’re ready – grab your slice and let’s get started!

The popularity of the 18 Inch Pizza

The 18-inch pizza has become increasingly popular over the years. It’s the perfect size for a family night in, birthday parties, or larger groups of people. Plus, the pizza can be divided into 8 equal slices that are just right to not leave you feeling overly full.

It’s also one of the most affordable sizes when ordering from a pizzeria or restaurant. Most places offer special discounts on the 18-inch size, making it an even better deal than smaller sizes.

So if you’re looking for enough food to satisfy everyone without breaking the bank, then the 18-inch pizza is definitely worth considering!  

How Big Is An 18-Inch Pizza?

If you were to measure the size of your pie on a ruler, an 18-inch pizza has a diameter of about 18 inches – which is the same size as two 9-inch pizzas combined. This means that when ordering an 18-inch pizza, you will get 8 slices plus some extra room around the edges. That means the total circumference of the pizza will be about fifty-six inches. The average slice of an 18-inch pizza is about eight inches long and two and a half inches wide, so you can expect each person in your group to get between three and four slices.

This size is the most popular pizza size from carry-outs and restaurants, as it can easily feed a family of four or five people. It’s also an excellent choice for larger groups, such as birthday parties, as it will provide enough slices for everyone without taking up too much space or requiring a huge number of toppings!

How Many Slices Are In An 18-Inch Pizza?

An 18-inch pizza is typically cut into eight slices, however, you can also order it with 10 or 12 slices. The number of slices will depend on the thickness of the crust and how many toppings you want on your pizza.

how big is an 18 inch pizza
how big is an 18 inch pizza

8 slices

An 18-inch pizza can be cut into 8 slices, with each slice measuring approximately 4.25 inches in diameter. This is the standard number of slices per pizza and perfect for anyone who wants a bigger but still manageable slice of pizza and enough leftovers for lunch the next day! It can easily serve up to 7 people, depending on how much they eat.

10 slices

Despite of option 8-slice, if you’re looking for a thinner crust and more toppings, the 10-slice is the size for you! This option is great for those with a bigger appetite or who just want more food.

12 slices

For those with a smaller appetite or just want fewer slices to go around, 12-slice could be the perfect option. This size is great for small groups or just a few people.

So if you’re wondering how big is an 18-inch pizza, now you have the answer! This size offers plenty of food and can easily feed larger groups or parties. Just make sure to ask the pizzeria or restaurant what their typical slice sizes are so that you can order accordingly and get enough for everyone. Enjoy your delicious pizza pie!

How Does It Compare To Other Sizes?

Other than the 18-inch size, there are also 12-inch, 14-inch, and 16-inch pizzas. 

– A 12-inch pizza measures roughly 10 – 11 inches in diameter and can be cut into 6 slices with each slice measuring approximately 3.5 inches in diameter. 

– A 14-inch pizza is 12 – 13 inches in diameter and can be cut into 8 slices, each slice measuring approximately 3.5 – 4 inches in diameter. 

A 16-inch pizza measures about 14 – 15 inches in diameter and can be cut into 10 or 12 slices with each slice measuring roughly 3.25 – 3.5 inches in diameter. 

The 18-inch pizza is a popular size for many pizzerias and restaurants, as it offers plenty of food without breaking the bank. As you can see, it is perfect for anyone looking for enough food to feed a group of people without having to order too many toppings. It’s also a great value, as most places offer special discounts on this size. 

What Are The Benefits Of An 18-Inch Pizza?

Apart from the fact that an 18-inch pizza is a great size to feed a family or large group, there are other benefits that make it a popular choice.

First off, it’s an economical option as you can get more toppings and thin crust for less money compared to smaller sizes.

Secondly, it’s easier to transport and store leftovers as it doesn’t take up too much space.

Lastly, it can be cut into 8-10 slices depending on the crust thickness and toppings which makes it a great size for sharing with friends or family.

All in all, an 18-inch pizza is an excellent option for when you want to feed a large group or just have leftovers for later. It’s a great size to get the most value for your money and enough slices for everyone!

How much does an 18-inch pizza weigh?

The average weight of an 18-inch pizza is approximately 4 pounds. The exact weight of the pizza will vary depending on the ingredients used, the size of the crust, and the thickness of the toppings.

How many people can it serve?

Whether you’re hosting a family gathering or an intimate party, the delectable 18-inch pizza is your perfect choice. It can satiate up to 7 people, depending on how much they eat – giving everyone just enough without having to overspend on toppings!

how big is an 18 inch pizza
how big is an 18 inch pizza

What’s the max amount of toppings?

For an 18-inch pizza, the maximum amount of toppings is typically up to 8 different items. This ensures that the toppings are evenly distributed and not too thick which can cause the crust to become soggy or burnt.

How much does an 18-inch pizza cost?

The cost of an 18-inch pizza can vary greatly depending on where you purchase it, the type of toppings used, and any special deals or discounts offered. In general, an 18-inch pizza can range from $10 to $30. Be sure to check with your local pizzeria for more information on prices and specials.


Pizza is a great food that can be shared with family and friends. It is important to know how big an 18-inch pizza is so you can have enough for everyone. An 18-inch pizza has 16 slices and each slice has 6 grams of protein. So, if you are looking for a nutritious meal, look no further than your local pizzeria. 

Moreover, if you’re looking for a heartier meal, opt for a thicker crust or add some extra toppings. Conversely, if you want something lighter, go thinner on the crust and choose fewer toppings. No matter what your preferences are, there’s an 18-inch pizza out there for you!

Other Articles


How many people will an 18-inch thin crust pizza feed?

An 18-inch thin crust pizza is typically large enough to feed 8-10 people. Depending on the toppings and type of crust, it can easily be cut into more slices to feed larger groups.

What are some cooking options for 18 inch pizzas?

Most pizzerias offer different cooking options for an 18-inch pizza. You can usually choose to have it cooked in a conventional oven, stone oven, or even an electric pizza machine. Make sure to ask the pizzeria which option they suggest for the best results!

What are some serving suggestions for 18 inch pizzas?

An 18-inch pizza is perfect for any gathering, whether it’s a family dinner or a party with friends. It’s also great for potlucks, as it can easily be cut into 8-10 slices for each person to enjoy. You can also choose to have the pizza pre-cut before serving so everyone gets an equal sized slice!

Are there any deals for 18 inch pizzas?

Many pizzerias offer specials and discounts on 18-inch pizzas, so be sure to check with your local restaurant or store to see if they have any special offers. You can also keep an eye out for coupons and flyers in your area that may provide additional savings on the pizza of your choice.

Are 18 inch pizzas available for delivery?

Yes, many pizza places offer delivery services for 18-inch pizzas. It is best to call ahead and ask your local pizzeria if they offer delivery of larger sizes before ordering. Most restaurants will require a minimum order for delivery, so be sure to ask about these policies as well. Additionally, many restaurants offer online ordering, making it easy to place your order and have the pizza delivered right to your door!

I am Isaac Chase Main, an editor at Wonder Pizza USA. I have more experience than most about pizza - I've been writing about it, editing it, cooking it and loving it for years. I want to share my knowledge with you all, to help make your pizza-eating experiences as wonderful as they can be. But that's not all. I'm also a content writer and cooker. So if you need someone to help with your website or just want someone to cook up a delicious pizza for you, I'm your man!

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