How many calories in roast beef?
Per 100 g, roast beef provides about 136 kcal. But what matters is your real portion — and its size varies. Here are the reference values, common portions, and an honest range.
1 slice (≈ 60 g) ≈ 82 kcal, i.e. a range of 75–90 kcal depending on size. A single to-the-gram number would be misleading.
Nutrition facts per 100 g
| Nutrient | per 100 g |
|---|---|
| Calories | 136 kcal |
| Protein | 26 g |
| Carbs | 0 g |
| Fat | 3.5 g |
Calories per portion
| Portion | Weight | Calories |
|---|---|---|
| 1 slice | 60 g | 82 kcal |
Indicative reference values (e.g. ANSES Ciqual / USDA FoodData Central); real products vary.
Estimate roast beef from a photo, without weighing
With Volumeal, photograph your plate: roast beef is identified and its portion estimated, with a confidence range rather than a fake exact number. You can correct the portion in one tap to tighten the estimate.
Track your calories effortlessly with Volumeal
To set your target, use the calorie calculator. For the full method, see how to count calories from a photo.
See also
Frequently asked questions
How many calories in 1 slice?
About 82 kcal (1 slice, ≈ 60 g), with a range of 75 to 90 kcal depending on real size.
What is the value per 100 g of roast beef?
About 136 kcal per 100 g, with 26 g protein, 0 g carbs and 3.5 g fat (reference values).
Do I need to weigh this food?
No: photograph your meal with Volumeal and the portion is estimated for you, with a confidence range.