A typical serving of bacon (1 slice, 12 g) has about 54 calories. Per 100 g: 468 kcal, 33.9 g protein, 1.7 g carbs, 35.1 g fat. 3 oz (85 g) comes to 398 calories. Most of the energy comes from fat.
| Serving | Weight | Calories |
|---|---|---|
| 1 slice | 12 g | 54 kcal |
| 3 oz | 85 g | 398 kcal |
| 100 g | 100 g | 468 kcal |
Each cooked slice is small, 10 g or so, which keeps one strip near 55 calories. On the energy-density scale, 468 kcal per 100 g puts bacon at the very high end. Protein density is strong: about 7.2 g of protein per 100 calories.
A typical serving (1 slice, 12 g) has about 54 calories, and 100 g has 468 kcal. Calories scale with weight, so double the portion means double the number.
There are 33.9 g of protein in 100 g of bacon, which works out to about 3.9 g per serving (1 slice). It contributes meaningful protein, though most of the calories come from elsewhere.
Yes, in the plain arithmetic sense: 35.1 g of fat per 100 g supplies about 68% 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 168322 (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 168322 (SR Legacy). Serving calories are computed from the per-100-g values.
