Calorie Counter

Estimate total calories from macronutrient amounts in a meal.

Scratchpad (not saved)

g

Total protein in grams

g

Total carbohydrates in grams

g

Total fat in grams

g

Alcohol in grams (optional)

What This Calculator Does

Estimate total calories from macronutrient amounts in a meal.

It combines Protein, Carbohydrates, Fat, Alcohol to estimate Total Calories, Per Serving Calories, Protein Calories.

Formula & Method

Calories are computed from macros: Cal=4P+4C+9F+7A where P,C,F,A are grams of protein, carbs, fat, and alcohol. Per-serving calories =\frac{Cal}{Servings}.

Notation used in the formulas: R = Total Calories; x_{1} = Protein; x_{2} = Carbohydrates; x_{3} = Fat; x_{4} = Alcohol; x_{5} = Number of Servings.

Method summary: inputs are normalized to consistent units, core equations are evaluated, then secondary values are derived and rounded for display.

Use this calculator for quick scenario analysis. Start with baseline values, change one driver at a time, and compare how sensitive the results are to each input shown above.

Inputs Used

  • Protein: Total protein in grams
  • Carbohydrates: Total carbohydrates in grams
  • Fat: Total fat in grams
  • Alcohol: Alcohol in grams (optional)
  • Number of Servings: Used directly in the calculation.

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