# How Many Calories Are in a Slice of Pizza?

URL: https://kibora.app/calories-in/pizza-slice/
Language: en
Page type: food calorie reference
Last Updated: 2026-08-31
Description: A typical 107 g slice of regular-crust cheese pizza has about 285 calories. See per-100-g values and why slice calories vary.
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## How Many Calories Are in a Slice of Pizza?

A representative slice of regular-crust cheese pizza weighing about 107 g contains approximately 285 calories.

Per 100 g, cheese pizza contains approximately 266 calories.

## Pizza calories by slice and weight

A slice is not a fixed unit. These values use regular-crust cheese pizza and a representative 107 g slice.

| Serving | Calories | Weight |
| --- | --- | --- |
| 100 g cheese pizza | 266 kcal | 100 g |
| 1 typical slice | 285 kcal | 107 g |
| 2 typical slices | 569 kcal | 214 g |
| 3 typical slices | 854 kcal | 321 g |

## Calculate calories for your pizza slice

For the best estimate, weigh your pizza. Slice size varies too much to be reliable by count alone.

Calculated from approximately 266 calories per 100 g.

## One slice is easy. A whole day gets harder.

Kibora helps you log meals quickly by photo, voice, barcode, text, or favorites, then puts calories and nutrition into the context of your whole day.

## How many calories should you eat per day?

Knowing what is in one pizza slice is useful. Knowing how it fits into your whole day is more useful.

## Nutrition data and methodology

The reference uses USDA FoodData Central data for regular-crust cheese pizza: approximately 266 calories per 100 g.

A representative slice weighs about 107 g and contains roughly 285 calories.

### Sources

[USDA FoodData Central](https://fdc.nal.usda.gov/)

## Common questions about pizza slice calories

### How many calories are in a slice of pizza?

A representative 107 g slice of regular-crust cheese pizza contains approximately 285 calories.

### How many calories are in 100 g of cheese pizza?

Regular-crust cheese pizza contains approximately 266 calories per 100 g.

### How many calories are in two slices of pizza?

Two representative 107 g cheese-pizza slices contain approximately 570 calories.

### Why do pizza slice calories vary so much?

Slice size, pizza diameter, crust thickness, cheese quantity and toppings all matter.