Kcals measure the amount of energy provided by a type of food. Foods contain one or more of the following substances: carbohydrates, proteins and fats. The amount of calories (Kcals) of a food is the sum of the kcals in each one of these categories.
Things You'll Need
Look on the food label of a product. If there is no label, look up the nutrition information online (see Resources). See how many grams of protein the food contains. Multiply the amount of protein grams by four. This is the amount of kcals in the protein portion.
Notice how many grams of carbohydrates are included in this product. Multiply the carbohydrate count by 4. This is the amount of carbohydrate kcals in the food being evaluated.
Find how many total fat grams there are. Multiply this number by 9. This is the amount of fat kcals in the food.
Add together the amounts of kcals in carbohydrates, fats, and proteins to get a total kcal count.
To find the percentage of an individual component, divide the amount of kcals by the total kcal count. For example, if there are 45 kcals of fat in a 90-kcal product, you would divide 45 by 90. This food, then, is made up of 50 percent fat kcals.
Tips & Warnings
- Attempt to eat the percentages recommended by the Food and Nutrition Board. Forty-five to 65 percent of your daily intake should be carbohydrates. Protein should comprise 10 to 35 percent. Fat should be 20 to 35 percent.
How to Calculate Kcal of Fiber
Dietary fiber consists of plant cell wall constituents that are indigestible by mammalian intestinal enzymes. Unlike digestible carbohydrates, which yield 4 ...
How to Calculate the TPN
How to Calculate Kcal. Kcals measure the amount of energy provided by a type of food. Foods contain one or more of...
Calories Burned While Shoveling
How to Calculate Calories From Walking. How Many Calories Must be Burned to Lose Weight? Calories Burned While Riding a Bicycle. Snow...
How to Convert Kcal to Calories Burned
How to Calculate Kilocalories. Kilocalories measure the amount of energy that food produces. Kilocalories and calories are the same, aside from the...
How to Convert Mets to Kilocalories Per Minute
How to Calculate Kcals Per Hour for an Uphill Hike; How to Convert the Wattage for a Rowing Ergometer; Print this article;...
How to Convert Grams Into Calories
How to Calculate Grams to Kilocalories. How to Calculate Calories From Protein Grams. How to Calculate Calories From Fat Grams. How to...
How to Calculate Calories From Fat Grams
A calorie is the most common unit used to measure the amount of energy your food provides to your body. Whether you...