SnapCalMacro calculator
Enter daily energy and calorie percentages for the three macros to convert them into grams. The defaults are an example, not a personal prescription, and inputs are not uploaded.
The calculation
The calculator uses USDA’s general energy factors: about 4 kcal per gram for carbohydrate and protein and 9 kcal per gram for fat. Percentages must total 100%.
There is no single perfect split
WHO describes healthy diets through adequacy, balance, moderation and diversity. Age, activity, culture, health and personal preference all affect an appropriate pattern.
Sources
Offers in-app purchases · Requires iOS 17.6 or later