Calories in bacon

USDA data · Updated October 12, 2026

Bacon (1 slice, 12 g) has 54 calories, with 3.9 g of protein, 0.2 g of carbohydrates and 4 g of fat. Per 100 g, that's 468 kcal.

Values are for Pork, cured, bacon, pre-sliced, cooked, pan-fried. Amounts vary with size, variety and preparation.

Bacon

Per 1 slice (12 g)


Calories54

Protein3.9 g
Carbohydrates0.2 g
   Fiber0 g
   Sugars0 g
Fat4 g
Sodium194 mg

Source: USDA FoodData Central.

Calories in bacon by serving

ServingWeightCaloriesProteinCarbsFat
100 g100 g46833.9 g1.7 g35.1 g
3 oz85 g39828.8 g1.4 g29.8 g
1 slice12 g543.9 g0.2 g4 g
1 oz28 g1339.6 g0.5 g9.9 g

Where the calories come from

Protein 30%Carbs 1%Fat 69%

Bacon has a high energy density (4.7 kcal per gram). It provides 7.2 g of protein per 100 kcal.

Meat & fish: calories compared

Per 100 gCaloriesProteinCarbsFat
Tuna (canned in water)8619.4 g0 g1 g
Shrimp9924 g0.2 g0.3 g
Cod10522.8 g0 g0.9 g
Tilapia12826.1 g0 g2.6 g
Turkey breast13629.5 g0 g2 g
Ham (deli slices)16416.6 g3.6 g8.8 g
Chicken breast16531 g0 g3.6 g
Chicken thigh17924.8 g0 g8.2 g
Salmon20622.1 g0 g12.3 g
Pork chop20925.6 g0 g11.1 g
Chicken wing25423.8 g0 g16.9 g
Sirloin steak25726.8 g0 g15.8 g
Ground beef (80/20)27025.8 g0 g17.8 g
Bacon46833.9 g1.7 g35.1 g

Log it in seconds

In C for Calories, photograph your plate and bacon is estimated along with everything else on it, or search for it and enter the amount in grams. For packaged versions, scan the barcode to use the label.

Source: U.S. Department of Agriculture, Agricultural Research Service. FoodData Central, SR Legacy, FDC ID 168322. Calories are rounded to the nearest whole number and nutrients to one decimal place.

FAQ

Frequently asked questions

How many calories are in bacon?

54 calories in 1 slice (12 g), or 468 calories per 100 g.

How much protein is in bacon?

3.9 g of protein in 1 slice (12 g) (33.9 g per 100 g).

How many carbs are in bacon?

0.2 g of carbohydrates in 1 slice (12 g).