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Food Calorie Calculator
Calories and macros for any amount of a common food.
Results
- Chicken breast, cooked — 100 g
- 165 kcal
- Protein
- 31 g
- Carbs
- 0 g
- Fat
- 4 g
- Fiber
- 0 g
Chicken breast, cooked has 165 kcal per 100 g. One 100 g is 100 g.
A food calorie calculator shows the calories and macronutrients in any amount of a food. Values come from a curated USDA FoodData Central subset, scaled to your grams.
Pick a food and enter grams for calories, protein, carbs, fat, and fiber.
How to calculate food calories
To calculate food calories, take the per-100 g value and scale it to your portion. Weigh the food for accuracy rather than eyeballing.
Worked example: chicken breast is 165 kcal per 100 g, so a 150 g fillet holds 248 calories.
Frequently asked questions
Multiply the food's per-100 g calories by your portion in grams, then divide by 100. A kitchen scale makes this exact.
About 143 calories in two large eggs (100 g), with 13 g of protein and 9.5 g of fat.
About 13 calories, since celery holds only 16 calories per 100 g.
Results are estimates based on population averages and are not medical advice. Consult a doctor or registered dietitian nutritionist (RDN) before making large changes to your diet, especially for deficits over 2 lb (0.9 kg) per week, during pregnancy or nursing, or for anyone under 18.