Calculate per-serving nutrition and calories from recipe macronutrients.
Fat carries more than twice the energy per gram of protein or carbohydrate, which is why it dominates calorie content. Fibre is counted at a reduced factor because it is only partially metabolised. Dividing by servings is where label errors usually arise, since the serving count must match the portion size actually used.
Nutrition Label
Calories = protein × 4 + net carbohydrate × 4 + fibre × 2 + fat × 9
This is an approximate calculation for personal reference. Regulatory nutrition labelling requires verified ingredient data and prescribed rounding rules, and should not be based on this estimate.
Calories = protein × 4 + net carbohydrate × 4 + fibre × 2 + fat × 9 Fat carries more than twice the energy per gram of protein or carbohydrate, which is why it dominates calorie content. Fibre is counted at a reduced factor because it is only partially metabolised.
Dividing by servings is where label errors usually arise, since the serving count must match the portion size actually used.
This calculator takes 5 inputs: Total protein, Total carbohydrate, Total fat, Total fibre, Number of servings. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.