How it is calculated
If the label already says “per 30 g serving”, do not enter that figure as the value per 100 g.
Serving = kcal per 100 g × grams / 100
Where the numbers come from
- Kcal per 100 g
- Serving — unit in the field: g
Example
250 kcal per 100 g and a 40 g serving give 100 kcal.
Questions
Can it be more than 100 g?
Yes.
Kcal or kJ?
The field expects kilocalories. Convert kilojoules in the energy converter.
Several foods?
Calculate each one and add them up. There is no shared menu of dishes here.