A typical serving of steak (3 oz, 85 g) has about 160 calories. Per 100 g: 188 kcal, 30.3 g protein, 0 g carbs, 6.6 g fat. 1 whole steak (393 g) comes to 739 calories. Protein supplies most of that energy.
| Serving | Weight | Calories |
|---|---|---|
| 3 oz | 85 g | 160 kcal |
| 1 whole steak | 393 g | 739 kcal |
| 100 g | 100 g | 188 kcal |
Trimmed sirloin is one of the leaner steaks: about 188 kcal per 100 g broiled. On the energy-density scale, 188 kcal per 100 g puts steak at the moderate end. Protein density is strong: about 16.1 g of protein per 100 calories.
A typical serving (3 oz, 85 g) has about 160 calories, and 100 g has 188 kcal. Calories scale with weight, so double the portion means double the number.
There are 30.3 g of protein in 100 g of steak, which works out to about 25.8 g per serving (3 oz). That is a genuinely high protein share for the calories.
Yes. Carbohydrate is 0 g per 100 g, effectively nothing, so almost all the calories come from protein and fat.
Every value on this page comes from USDA FoodData Central, entry 168635 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
Snap a photo of your plate in Joules and the calories and macros for steak are logged for you.
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 168635 (SR Legacy). Serving calories are computed from the per-100-g values.
