Calories in pepperoni (sliced)
Calories, protein, carbohydrate and fat per 100 g and per serving, from the USDA reference database — plus what actually changes the number on your plate.
Short answer
100 g of pepperoni (sliced) contains 504 kcal, with 19.3 g of protein, 1.2 g of carbohydrate and 46.3 g of fat.
A typical serving — 1 slice, about 2 g — is roughly 10 kcal.
That is a very calorie-dense food: small amounts carry a lot of energy, and it is easy to under-count.
Nutrition facts
| Nutrient | Per 100 g | 1 slice (2 g) |
|---|---|---|
| Calories | 504 kcal | 10 kcal |
| Protein | 19.3 g | 0.4 g |
| Carbohydrates | 1.2 g | 0 g |
| Sugars | 0 g | 0 g |
| Fibre | 0 g | 0 g |
| Fat | 46.3 g | 0.9 g |
| Saturated fat | 17.7 g | 0.4 g |
| Cholesterol | 97 mg | 2 mg |
| Sodium | 1,582 mg | 32 mg |
| Potassium | 274 mg | 6 mg |
| Calcium | 19 mg | 0 mg |
| Iron | 1.3 mg | 0 mg |
| Vitamin C | 0 mg | 0 mg |
| Water | 29 g | 1 g |
Calories per serving
| Serving | Weight | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|---|
| 1 slice | 2 g | 10 | 0.4 g | 0 g | 0.9 g |
Photograph it instead of looking it up
Wellix identifies pepperoni on your plate, estimates the portion and logs calories, protein, carbs and fat in seconds. Free to start on iPhone and Android.
Calories by weight
Use this table when you know the weight but not the serving:
| Amount | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|
| 25 g | 126 | 4.8 g | 0.3 g | 11.6 g |
| 50 g | 252 | 9.6 g | 0.6 g | 23.1 g |
| 100 g | 504 | 19.3 g | 1.2 g | 46.3 g |
| 150 g | 756 | 28.9 g | 1.8 g | 69.4 g |
| 200 g | 1,008 | 38.5 g | 2.4 g | 92.6 g |
| 250 g | 1,260 | 48.1 g | 3 g | 115.7 g |
| 300 g | 1,512 | 57.8 g | 3.5 g | 138.8 g |
Where the calories come from
Calories come from three macronutrients: protein and carbohydrate at 4 kcal per gram, fat at 9 kcal per gram. For pepperoni (sliced) the split is:
- Protein: 19.3 g × 4 = 77 kcal — 15% of calories
- Carbohydrates: 1.2 g × 4 = 5 kcal — 1% of calories
- Fat: 46.3 g × 9 = 417 kcal — 84% of calories
- Most of the energy in pepperoni (sliced) comes from fat (84% of calories).
- With 19.3 g of protein per 100 g it counts as a high-protein food.
- That is 3.8 g of protein per 100 kcal — a useful number when protein is your target.
- It is high in sodium: 1,582 mg per 100 g.
- For 200 kcal you can eat about 40 g.
What actually changes the number
Pepperoni is around 500 kcal per 100 g, and a standard pizza slice carries five to seven pieces — about 60–80 kcal extra per slice compared with plain cheese.
How accurate are these numbers?
The values on this page are reference averages from the USDA FoodData Central database (SR Legacy release), measured on samples of pepperoni as sold and prepared in the United States. Your portion will differ: produce varies by variety and ripeness, meat by cut and trim, and anything cooked by the fat and water it gained or lost.
For most foods the per-100 g figure is reliable to within about 10%. The larger uncertainty is almost always the weight of what is on your plate and the cooking fat you cannot see — the two things worth checking before you worry about the database.
How accurate are AI calorie counting apps? →
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Frequently asked questions
How many calories are in 100 g of pepperoni?
100 g of pepperoni (sliced) contains 504 kcal (19.3 g protein, 1.2 g carbohydrate, 46.3 g fat), according to USDA reference data.
How many calories are in a serving of pepperoni?
A typical serving of pepperoni — 1 slice, about 2 g — has roughly 10 kcal. Weigh your own portion once to see how it compares; serving sizes vary more than the food does.
How much protein is in pepperoni?
Pepperoni (sliced): 19.3 g of protein per 100 g, which is high. Foods above about 15–20 g per 100 g, or where protein supplies a third or more of the calories, are usually considered high-protein.
What amount of pepperoni equals 200 kcal?
At 504 kcal per 100 g, about 40 g of pepperoni equals 200 kcal.
Can I track pepperoni by taking a photo?
Yes. A photo calorie app like Wellix identifies pepperoni on the plate and estimates the portion from the image. The estimate is most accurate when you confirm the weight or the count, and tell the app about anything the camera cannot see — cooking oil, butter, dressings and sauces.
Source
Nutrition data: U.S. Department of Agriculture, FoodData Central — SR Legacy, FDC ID 174575: "Pepperoni, beef and pork, sliced". Values are per 100 g of edible portion. Serving weights are USDA household measures or typical retail sizes; check the label where one exists. View the USDA record.
Wellix provides general nutrition information and is not medical advice. Nutrition values are reference averages and individual foods vary. Consult a qualified healthcare professional before making significant dietary changes.
Photograph it instead of looking it up
Wellix identifies pepperoni on your plate, estimates the portion and logs calories, protein, carbs and fat in seconds. Free to start on iPhone and Android.
