Calories in bacon (pan-fried)
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 bacon (pan-fried) contains 468 kcal, with 33.9 g of protein, 1.7 g of carbohydrate and 35.1 g of fat.
A typical serving — 1 slice, about 8 g — is roughly 37 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 (8 g) |
|---|---|---|
| Calories | 468 kcal | 37 kcal |
| Protein | 33.9 g | 2.7 g |
| Carbohydrates | 1.7 g | 0.1 g |
| Sugars | 0 g | 0 g |
| Fibre | 0 g | 0 g |
| Fat | 35.1 g | 2.8 g |
| Saturated fat | 12 g | 1 g |
| Cholesterol | 99 mg | 8 mg |
| Sodium | 1,684 mg | 135 mg |
| Potassium | 499 mg | 40 mg |
| Calcium | 11 mg | 1 mg |
| Iron | 1 mg | 0.1 mg |
| Vitamin C | 0 mg | 0 mg |
| Water | 24 g | 2 g |
Calories per serving
| Serving | Weight | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|---|
| 1 slice | 8 g | 37 | 2.7 g | 0.1 g | 2.8 g |
Photograph it instead of looking it up
Wellix identifies bacon 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 | 117 | 8.5 g | 0.4 g | 8.8 g |
| 50 g | 234 | 17 g | 0.9 g | 17.5 g |
| 100 g | 468 | 33.9 g | 1.7 g | 35.1 g |
| 150 g | 702 | 50.9 g | 2.6 g | 52.6 g |
| 200 g | 936 | 67.8 g | 3.4 g | 70.2 g |
| 250 g | 1,170 | 84.8 g | 4.3 g | 87.7 g |
| 300 g | 1,404 | 101.8 g | 5.1 g | 105.3 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 bacon (pan-fried) the split is:
- Protein: 33.9 g × 4 = 136 kcal — 30% of calories
- Carbohydrates: 1.7 g × 4 = 7 kcal — 1% of calories
- Fat: 35.1 g × 9 = 316 kcal — 69% of calories
- Most of the energy in bacon (pan-fried) comes from fat (69% of calories).
- With 33.9 g of protein per 100 g it counts as a high-protein food.
- That is 7.2 g of protein per 100 kcal — a useful number when protein is your target.
- It is high in sodium: 1,684 mg per 100 g.
- For 200 kcal you can eat about 45 g.
What actually changes the number
Cooked bacon is about 470 kcal per 100 g, but a cooked rasher weighs only 8–10 g, so a slice is roughly 40 kcal. Three slices are 120 kcal; the danger is in the count, not the food.
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 bacon 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 bacon?
100 g of bacon (pan-fried) contains 468 kcal (33.9 g protein, 1.7 g carbohydrate, 35.1 g fat), according to USDA reference data.
How many calories are in a serving of bacon?
A typical serving of bacon — 1 slice, about 8 g — has roughly 37 kcal. Weigh your own portion once to see how it compares; serving sizes vary more than the food does.
How much protein is in bacon?
Bacon (pan-fried): 33.9 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 bacon equals 200 kcal?
At 468 kcal per 100 g, about 45 g of bacon equals 200 kcal.
Can I track bacon by taking a photo?
Yes. A photo calorie app like Wellix identifies bacon 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 168322: "Pork, cured, bacon, pre-sliced, cooked, pan-fried". 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 bacon on your plate, estimates the portion and logs calories, protein, carbs and fat in seconds. Free to start on iPhone and Android.
