Recipe Nutritional Calculator
From a Whole Batch to a Single Plate
Recipe nutrition labels and cookbook totals almost always describe the entire dish, not the portion you're actually about to eat. Dividing by the number of servings is simple arithmetic, but it's the step that turns a recipe's bulk nutrition figures into numbers you can actually log against a daily target.
The Formula
This applies separately to calories, protein, carbohydrates, and fat — each total is divided by the same servings figure to give a consistent per-serving breakdown.
Cross-Checking With the 4/4/9 Rule
As a built-in accuracy check, the calculator also computes calories from the macro totals directly, using the standard Atwater energy values: 4 kcal per gram of protein, 4 kcal per gram of carbohydrate, and 9 kcal per gram of fat. Comparing that macro-derived calorie figure against the calorie total you entered is a quick way to catch a typo in the source recipe data.
| Macronutrient | kcal per gram |
|---|---|
| Protein | 4 |
| Carbohydrate | 4 |
| Fat | 9 |
Where This Is Useful
- Meal prep and batch cooking — knowing the true per-serving numbers matters when a recipe is portioned out across a week.
- Adapting a recipe — if you change the number of servings a recipe yields, the per-serving values need to be recalculated to stay accurate.
- Logging homemade meals — recipes copied from a website or cookbook rarely list per-serving values directly; this fills that gap.
How to Use This Calculator
- Enter the total calories for the entire recipe.
- Enter the total protein, carbs, and fat in grams for the entire recipe.
- Enter the number of servings the recipe makes.
- Select Calculate to see the per-serving breakdown.
Related Calculations
Compare a recipe's calorie count against your daily needs with the TDEE Calculator, or your macro targets with the Macro Calculator.