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Macronutrient Calculator

What Is A Macronutrient Calculator?

Pie chart of food for macronutrient calculator ratio concept

Use our Macronutrient Calculator to determine the exact ratio of carbs, protein & fat calories ideal for your daily nutrient intake, to help you reach your weight loss goal more effectively.

Keto, Zone, Low Fat & Low Carb diets are included in the drop-down options.

Carb, Protein, Fat Calculator

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Results - Amount of nutrient required

Carbohydrate Protein Fat
Grams per day      
Grams per meal      
Calories per day      
Calories per meal      

When many people start a diet, their first thought is often that they need to reduce their caloric intake. Though this may be a good idea to start, not all calories are created equal. The body deals with different types of calories – macronutrients in the forms of carbohydrates, proteins, and fats – in different ways. For this reason, you may wish to use a macronutrient calculator in order to help you to determine the ratio of the intake of these forms of food that you should be consuming.

This type of calculation can seem quite daunting to many people who have never taken fats, carbs, and proteins into account when they eat. However, when you use a macronutrient calculator, much of the work is already done for you. All you need to do is follow the numbers that it provides.

How To Begin Calculating Your Macronutrient Ratio

When you use this tool, you’ll need to start by knowing how many calories you wish to consume in a day. You can obtain this information from your doctor or another specialist, or you can use another online tool that helps you to determine your ideal daily caloric intake. From there, you can enter your intended daily calorie level and discover what your ratio should be among fats, carbohydrates, and proteins, based on several types of goals.

The results will not only provide you with a ratio in terms of a percentage, but they will also often break down this information into useable numbers, that is, grams. This way, you will be able to keep a more accurate total of how much of each macronutrient you are eating based on the number of grams that you are permitted every day.

Macronutrient Ratios For Varying Weight Loss Programs

You may find that depending on the type of weight loss program you are using, there will be a greater focus on one macronutrient or another. For example, there are many different low fat or reduced carbohydrate diets in today’s diet marketplace. Many good macronutrient calculators will take this into account and will allow you to select options based on this type of program. These tools allow you to avoid complex calculations and know that you are adhering quite accurately to the weight loss strategy of your choice.

It is important to recognize that a macronutrient calculator’s results are based on the average individual. If you are seeking personalized data of this nature, then it is important for you to consult your doctor or a nutritionist or dietician.