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Grams To Calories Calculator

Convert Macronutrient from Grams to Calories!

Calories from carbs:

g ▾

Fat:

g ▾

Protein:

g ▾

Related

The Grams to Calories Calculator measures the nutritional values of macronutrients and converts them into calories. Knowing the macro ratio in your food helps assess the quality of your diet.

How Does This Grams to Calories Calculator Work?

To use this calculator, follow these steps:

Input:

Enter the values of Fats, Proteins, and Carbohydrates in the designated fields and click the calculate button.

Output:

Calories from carbohydrates
Calories from protein
Calories from fat
Total Calories

Grams to Calories Conversion

A calorie is a unit of energy used to describe the nutritional value of food. One calorie is the amount of energy needed to raise the temperature of 1 gram of water by 1°C. You can convert grams of each macronutrient into calories to determine their energy contribution.

Using calorie conversion, you can:

Maintain a healthy lifestyle
Keep a healthy weight
Track your energy requirements

How Many Calories in a Gram of Carbohydrate?

Simple sugars: 3.87 kcal per gram

Complex carbohydrates: 3.57 - 4.12 kcal per gram

You can use a carbs to calories calculator to convert carb grams into calories easily.

How Many Calories in a Gram of Protein?

Proteins are essential for body structure and regulation. One gram of protein contains 4 kcal.

Use a protein to calories calculator for precise calculations.

How Many Calories in a Gram of Fat?

Fat is the most energy-dense macronutrient, providing 9 kcal per gram.

You can use a grams of fat to calories calculator for accurate measurement.

Are Cal and kcal the Same?

Yes, but they have slightly different definitions:

Cal refers to a small calorie (gram calorie)
Kcal refers to a kilocalorie (food calorie)

For practical purposes, converting grams to calories or kilocalories is the same.

Grams to Calories Conversion Formula

Different macronutrients have different coefficients for converting grams into calories. Using the calculator saves time, especially for small quantities.

Grams to Calories Conversion Formulas can be difficult to do manually. For example, see the figure below:

Grams to Calories Conversion Formula

The calculator helps quickly convert grams of Fat, Protein, and Carbohydrates into calories accurately.

Gram to Calorie Conversion Table

Convert the macronutrient values precisely using this table or calculator.

Gram	Calories
1g	7.716 kcal
2g	15.43 kcal
3g	23.15 kcal
4g	30.86 kcal
5g	38.58 kcal
6g	46.3 kcal
7g	54.01 kcal
8g	61.73 kcal
9g	69.45 kcal
10g	77.16 kcal
11g	84.88 kcal
12g	92.59 kcal
13g	100.31 kcal
14g	108.03 kcal
15g	115.74 kcal
16g	123.46 kcal
17g	131.18 kcal
18g	138.89 kcal
19g	146.61 kcal
20g	154.32 kcal
21g	162.04 kcal
22g	169.76 kcal
23g	177.47 kcal
24g	185.19 kcal
25g	192.9 kcal
26g	200.62 kcal
27g	208.34 kcal
28g	216.05 kcal
29g	223.77 kcal
30g	231.49 kcal
31g	239.2 kcal
32g	246.92 kcal
33g	254.63 kcal
34g	262.35 kcal
35g	270.07 kcal
36g	277.78 kcal
37g	285.5 kcal
38g	293.21 kcal
39g	300.93 kcal
40g	308.65 kcal
41g	316.36 kcal

Macronutrients in Food

According to the WHO, a person requires certain nutrients to live a normal, healthy life. Macronutrients provide energy and support essential body functions.

The three most important macronutrients are: