15 inch pizza how many slices

How many times have you wondered whether it's better to get 2 medium pizzas or just 1 large pizza? Probably quite a few. What pizzerias usually tell you is a diameter of the pizza pie, but we don't eat the diameter. We don't eat the circumference either. What we eat is the area of the pizza. It's very basic maths that revolves around the equation Area = Radius² * Pi, but we're often in too much of a hurry, or just can't be bothered to calculate it in our heads. That's why we built this pizza comparison tool to solve these problems once and for all.

The calculator requires minimal effort from you. Simply type in the diameter, price and number of smaller pizzas and repeat it for the larger pizza(s) you're considering. This tool will show you the total area and price of each pizza and how they compare against each other, expressed as a percentage. If you just want to compare the areas just skip the prices - this tool will work either way. Units will be defaulted to your country's units but feel free to switch between metric and imperial as you wish or maybe you could grab 3000 millimeters worth of pizza!

It's worth noting that it's almost always more cost-effective to opt for a larger pizza. As is the case in any other industry, pizzerias have better margins / markups on smaller products. The table below shows how quickly a pizza's area grows as the pizza diameter increases. As a result, an 18-inch pizza is over 3 times larger than a 10-inch one. At the same time grabbing a monster 61-centimeter pizza will feed more people than 2 40-centimeter ones or nearly 6 25-cm pies.

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Area [in2]

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Area [cm2]

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Make sure you use our calculator you next time you order a pizza. You'll be grateful you did the maths once your order arrives. Now it's not only discounts that can save you money!

💡 Got a coupon for your pizza? Then make sure to visit the discount calculator to quickly find out how much you'll save on your purchase.


We are 5 people, should I order 3 medium or 2 large pizzas?

The size of the pizza is its diameter, and the area of a pizza increases as we increase the diameter. It is almost always a more cost-effective option to choose a large pizza because you get more area, which means more pizza to eat.

Suppose a medium pizza is 12 inches and a large is 16 inches. In that case, Omni's pizza comparison calculator states that the areas for 3 medium and 2 large pizzas 339.29 in² and 402.12 in², respectively. This means you get more pizza with 2 large pizzas.

Is area of a pizza different than the size I ordered?

Yes, the area and size of a pizza are different properties. We order pizza by its size, which is its diameter. But we do not eat the diameter of the pizza, do we? In fact, what we eat is the area of the pizza.
The formula to calculate the area of a circular pizza is:

area = radius² × pi
Radius is simply diameter divided by 2.

Let's suppose your pizza size is 16 cm. The radius is 8.
So, 8 squared is 64. Multiply this by pi, 3.14, to get your result of 201.06 cm².

How do I calculate the actual size of a pizza?

If by the actual size you mean the area of the pizza, which is the part that we eat, then worry not; we've got you covered!
The formula calculates the area of a circular pizza:

area = radius² × pi
Radius is simply diameter divided by 2.

Let's suppose your pizza size is 20 inches in diameter. The radius would be 10 inches.
So, 10 squared is 100 Multiplied by pi, 3.14, your result is 314.16 in², which is the actual size (area) of the 20-inch pizza you eat.

Does area of the pizza matter while ordering?

The area of the pizza matters because that is the part that we actually eat. Therefore don't focus too much on the diameter or the circumference of the pizza.

The area increases significantly as the diameter changes. However, pizzerias often use diameter to confuse this fact. For instance, the area of a small 8 inch pizza is 50.27 in².

If you’re reading this blog, you’re likely standing in the pizza shop line thinking, “Which pizza size is right for me?” I’m going to make it simple. A 14-inch pizza is a large pizza (almost always) and comes with ten good-sized slices. 

Hi! My name is Michelle, and I like to think of myself as a pizza guru. I know almost everything there is to know about pizza, especially when it comes to sizes. Trust me; I’ve thrown enough birthday parties to know which size is which and how many slices it will offer.

Knowing which pizza size to buy can be tricky, but not anymore. Today, we’re discussing whether or not the 14-inch pizza will render enough slices to suit your needs. Plus, we’ll share a bit more valuable information you won’t want to miss out on.

Let’s talk about pizza sizes!


  • How Many Slices in a 14-inch Pizza?
  • How Many People Does a 14-inch Pizza Feed?
  • FAQs
    • How many slices are in a 14-inch deep-dish pizza?
    • How many slices are in an 18-inch pizza?
    • How many 14 pizzas do I need for 15 people?
    • How many slices are in a 15-inch pizza?
  • Final Words

How Many Slices in a 14-inch Pizza?

15 inch pizza how many slices

When it comes to how many slices are in a 14-inch pizza, the best answer is ten slices. Almost all pizza places work the same, and cutting into ten equal slices is the easiest solution for a 14-inch pizza.

However, keep in mind that not all pizzas (or pizza shops) are created equal. For example, Brooklyn-style pizzas are known for their XL pizza slice sizes. With this type of pizza, you might only end up with eight slices. 

Another pizza place might cut their slices smaller than the average shop. I know from personal experience that there’s a local pizza place that cuts their slices extra small so that a 14-inch pizza could offer up to 12 or 14 slices.

The best thing to do is ask. Nobody is going to know how many slides come in a 14-inch pizza better than the pizza shop that’s making it. Otherwise, you can almost bet that you’re going to end up with ten slices of equal size, and these slice sizes are pretty generous, too.

How Many People Does a 14-inch Pizza Feed?

15 inch pizza how many slices

Knowing how many slices come in a 14-inch pizza is only half the battle. How many people is the large pizza actually going to feed? Well, it kind of depends on who you’re feeding and how many slices each person will need.

Consider the gathering or party. If you’re hosting a kid’s birthday party, then you can assume each child will get one or two pieces. Adults will need two or three pizzas each. That said, large 14-inch pizzas will typically serve three to five people.

The best thing to do is calculate the number of people attending the party and go from there. I always recommend buying more than you need, in case some of your guests want an extra slice. You can always freeze leftovers! 


Basically, a 14-inch pizza is a large-sized pizza with ten slices hiding inside. It’s enough to feed at least three people or up to five people. If you still have some questions about the 14-inch pizza, keep reading. Below are some interesting FAQs you’ll want to know.

How many slices are in a 14-inch deep-dish pizza?

A 14-inch deep-dish pizza isn’t going to be much different than a “regular” pizza. You are still going to end up with ten slices. The biggest difference is these slices are likely to be cut into squares rather than triangles. You can still serve three to five people with a deep dish.

How many slices are in an 18-inch pizza?

An 18-inch pizza is known as an extra, extra-large pizza. Pizza shops might have different names for this monstrous size of pizza. Regardless of the name and style, an 18-inch pizza will have 14 slices as the “standard” amount.

How many 14 pizzas do I need for 15 people?

Think about it. If a 14-inch pizza can serve three to five people, you will need at least three pizzas for a group of fifteen people. I always err on the side of caution when buying pizza for a group, though. I, myself, can easily eat four pieces. So, I would say always to buy more than you need.

How many slices are in a 15-inch pizza?

A 15-inch pizza is not a common size for pizzas. It would land somewhere between large and extra-large. The 15-inch pizza will likely have ten slightly larger slices than the norm or 12 slices that are a bit smaller.

Final Words

A 14-inch pizza will provide you with ten good-sized slices, in most cases. However, it really depends on the pizza shop and the type of pizza. Ten slices are the standard, though, and a single 14-inch pizza can easily feed up to five people. 

Did you know how many slices were in a 14-inch pizza? Do you buy 14-inch pizzas often? Share your thoughts with us below!

About Michelle

I have been a lover of sweets since day one. This led me on a self-taught baking journey starting at the age of 13. It's been over 10 years since the start of my baking adventures, and I’ve learned a lot along the way. Now, people rave about my delectable treats, whether it’s a chocolate cake or a strawberry crepe.

How big is a 15inch pizza?

To quantify it, the surface area of a 15-inch pizza is 177 square inches.

Is 15

A pizza is measured in diameter. A standard large pizza is 16 inches.

How many pizzas does 15 feed?

10 People = 4 Pizzas. 15 People = 6 Pizzas.

How much pizza do I need for a party of 15?

Let's look at another scenario — if you're trying to feed 15 people, you'll want around 45 slices. That means you can order eight medium-sized pizzas or six large pizzas. In this case, you'll save money by ordering six large pizzas. Overall, what's best for your get-together or gathering will come down to the toppings.