Grams → Calories

Enter macronutrient masses; energy uses standard factors.

Inputs

Results

Calories from carbs
kcal
Calories from protein
kcal
Calories from fat
kcal
Calories from alcohol
kcal
Total calories
kcal

Actions

Step-by-step derivation

Enter values to see the math…

References

  • Energy factors (kcal per gram): carbohydrate ≈ 4, protein ≈ 4, fat ≈ 9, alcohol ≈ 7.
  • Terminology: on nutrition labels, “Calorie” typically means kilocalorie (kcal).

Alcohol (grams) Calculator

ABV (%) × Volume (mL) × 0.78924 g/mL = grams of alcohol

%
mL
g

Step-by-step

Enter ABV and volume to see the working.

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