Macronutrient Energy
Convert entered protein, carbohydrate and fat grams to label-style energy.
Your numbers
Estimated energy
General 4/4/9 factors; fibre, sugar alcohols, organic acids and food-specific factors can differ. This does not recommend macro targets.
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Formula
Use E = 4P+4C+9F. P, C and F are grams of protein, available carbohydrate and fat. Estimated energy E is in kcal, using general food-label factors.
Convert entered protein, carbohydrate and fat grams to label-style energy.
Worked example
- Protein (g)
- 30
- Available carbohydrate (g)
- 50
- Fat (g)
- 10
- Estimated energy
- 410 kcal
- Protein energy
- 120 kcal
- Carbohydrate energy
- 200 kcal
- Fat energy
- 90 kcal
Scope and limitations
General 4/4/9 factors; fibre, sugar alcohols, organic acids and food-specific factors can differ. This does not recommend macro targets.
Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.
Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.
Formula version: d6fd2a6e3d22 · Example checked: