What is this calculator?
Calculate food energy from grams of carbohydrate, protein and fat.
What can you use it for?
Use it to understand the numerical relationship between the measurements or dates entered. Calculate food energy from grams of carbohydrate, protein and fat.
How to use it
- Enter carbohydrate (g).
- Enter protein (g).
- Enter fat (g).
- Select Calculate (or Generate for random tools).
- Read the answer and any additional results below the form. Check the units and the limits of the method.
Formula and method
The formula uses the units and definitions shown above. Each input is substituted before the arithmetic is evaluated; the calculated output is rounded for display.
Worked example
Carbohydrate (g): 30, Protein (g): 15, Fat (g): 10. The result is 270 kcal (result).
Assumptions and limits
General food-energy calculation. This is not a proprietary WeightWatchers points calculation.
Frequently asked questions
What inputs does the Nutrition Energy Calculator need?
Use carbohydrate (g), protein (g), fat (g). Read the answer and any additional results below the form. Check the units and the limits of the method.
What assumptions apply to the Nutrition Energy Calculator?
General food-energy calculation. This is not a proprietary WeightWatchers points calculation.