Pizza Nutrition Facts : How Many Calories is a Slice of Pizza? Here it is

Since there is no standard size of the pizza and there are an ever-increasing plethora of toppings used, it is next to impossible to answer this question in a single sentence. So, we will break it up into different aspects and look at it from many perspectives and give you a whole bank of answers so that you know exactly how many calories a slice of a particular pizza is packing in.

First, we will look at only the crust.

12″ pizza:

This is usually sold as small pizzas and is meant for economical meal plans or to be eaten more like a snack than a meal.

1 slice weighs: 77 grams
The number of calories (Regular crust): 204 calories
The number of calories (Cheese filled): 357 calories
The number of calories (Thin crust): 189 calories

14″ pizza:

This is the most common size in which pizza is sold and usually designated as a medium or a large depending on where you are situated.

1 slice weighs: 107 grams
The number of calories (Regular crust): 285 calories
The number of calories (Cheese filled): 400 calories
The number of calories (Thin crust): 225 calories

16″ pizza:

This is the more common size variant amongst traditional pizzerias. This is usually sold as an extra large by most commercial pizza chains.

1 slice weighs: 138 grams
The number of calories (Regular crust): 367 calories
The number of calories (Cheese filled): 502 calories
The number of calories (Thin crust): 316 calories

18″ pizza:

This is the one meant for social gatherings and parties. It is usually sold under the moniker of jumbo or some other similar name. This is also the size in which a New York style pizza is available in.

1 slice weighs: 192 grams
The number of calories (Regular crust): 510 calories
The number of calories (Cheese filled): 621 calories
The number of calories (Thin crust): 477 calories

One thing that is clear from all these numbers is that even a small increase in the diameter of a pizza results in a huge increase in a number of calories it packs in each of its slices. This is because of the huge increase in both thickness as well as the overall surface area with a small increase in diameter. The cheese, tomato sauce and toppings pack in calories as per the following statistic.

100 grams of tomato sauce: 37 calories
100 grams of mozzarella cheese: 280 calories
100 grams of regular vegetable toppings: 65 calories
100 grams of chicken toppings: 239 calories
100 grams of beef toppings: 250 calories
100 grams of pork toppings: 242 calories