A typical serving of pepperoni (1 oz (about 14 slices), 28 g) has about 143 calories. Per 100 g: 504 kcal, 19.2 g protein, 1.2 g carbs, 46.3 g fat. 1 slice (2 g) comes to 10 calories. Most of the energy comes from fat.
| Serving | Weight | Calories |
|---|---|---|
| 1 oz (about 14 slices) | 28 g | 143 kcal |
| 1 slice | 2 g | 10 kcal |
| 100 g | 100 g | 504 kcal |
At nearly 500 kcal per 100 g, it is the densest thing on most pizzas. On the energy-density scale, 504 kcal per 100 g puts pepperoni at the very high end.
A typical serving (1 oz (about 14 slices), 28 g) has about 143 calories, and 100 g has 504 kcal. Calories scale with weight, so double the portion means double the number.
There are 19.2 g of protein in 100 g of pepperoni, which works out to about 5.4 g per serving (1 oz). Treat it as an energy source rather than a protein source.
Yes, in the plain arithmetic sense: 46.3 g of fat per 100 g supplies about 83% of the calories. Whether that fits your day depends on your totals, not on the food alone.
Every value on this page comes from USDA FoodData Central, entry 174575 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
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Get JoulesA note on accuracy: calculators like this one provide estimates based on population-level formulas — your real needs vary with genetics, muscle mass, medical conditions, and more. Results are for information only and are not medical advice, a diagnosis, or a prescription. Talk to a doctor or registered dietitian before making significant changes to your diet or exercise, especially if you have a health condition, are pregnant, or are under 18.
Nutrition data: USDA FoodData Central, FDC ID 174575 (SR Legacy). Serving calories are computed from the per-100-g values.
