For example, if there are ten grams of fat, you would multiple ten grams of fat by nine calories, for a total of 90 calories. This is how many calories there are in the fat grams.
If a label states there are three servings, you would then multiply 90 by three, for a total of 270 calories.
For example, if a product had nine grams of carbohydrates, you would use the equation (9 x 4) to get a total of 36 calories. You would use four as your multiplier because there are four calories in every one gram of carbohydrate.
A gram and a calorie are different units of measure that can’t be converted into one another. [9] X Research source
You can’t weigh food and convert the grams into calories. You have to know how many calories there are in a specific type of macro-nutrient gram to calculate the total calories in it.
