Grams to Calories Conversion

Enter the weight in grams below to get the value converted to calories.

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1 g = 7.716179 kcal
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How to Convert Grams to Calories

To convert a gram measurement to a calorie measurement, multiply the weight by the conversion ratio.

Since one gram of body fat is equal to 7.716179 calories, you can use this simple formula to convert:

calories = grams × 7.716179

The weight in calories is equal to the grams multiplied by 7.716179.

For example, here's how to convert 5 grams to calories using the formula above.
5 g = (5 × 7.716179) = 38.580896 kcal

Grams are a unit of weight, and calories are a unit of energy. Keep reading to learn more about each unit of measure.

Grams

A gram is the mass/weight equal to 1/1,000 of a kilogram and is roughly equivalent to the mass of one cubic centimeter of water.

The gram, or gramme, is an SI unit of weight in the metric system. Grams can be abbreviated as g; for example, 1 gram can be written as 1 g.

Calories

Converting calories is actually a conversion of energy burned by the body performing work rather than actual weight. When measuring the energy content in foods, the large calorie, or kilocalorie, is used, but it's often still just called a "calorie."

One calorie (large calorie) is equal to the heat needed to raise the temperature of one kilogram of water by 1 degree Celsius.[1] You'll need to burn 3,500 calories more than you eat to lose one pound of weight.[2]

Calories can be abbreviated as kcal; for example, 1 calorie can be written as 1 kcal.

Gram to Calorie Conversion Table

Gram measurements converted to calories
Grams Calories
1 g 7.7162 kcal
2 g 15.43 kcal
3 g 23.15 kcal
4 g 30.86 kcal
5 g 38.58 kcal
6 g 46.3 kcal
7 g 54.01 kcal
8 g 61.73 kcal
9 g 69.45 kcal
10 g 77.16 kcal
11 g 84.88 kcal
12 g 92.59 kcal
13 g 100.31 kcal
14 g 108.03 kcal
15 g 115.74 kcal
16 g 123.46 kcal
17 g 131.18 kcal
18 g 138.89 kcal
19 g 146.61 kcal
20 g 154.32 kcal
21 g 162.04 kcal
22 g 169.76 kcal
23 g 177.47 kcal
24 g 185.19 kcal
25 g 192.9 kcal
26 g 200.62 kcal
27 g 208.34 kcal
28 g 216.05 kcal
29 g 223.77 kcal
30 g 231.49 kcal
31 g 239.2 kcal
32 g 246.92 kcal
33 g 254.63 kcal
34 g 262.35 kcal
35 g 270.07 kcal
36 g 277.78 kcal
37 g 285.5 kcal
38 g 293.21 kcal
39 g 300.93 kcal
40 g 308.65 kcal

References

  1. Brazier, Yvette, How many calories do you need?, Medical News Today, https://www.medicalnewstoday.com/articles/263028
  2. Guth, E., Healthy Weight Loss, JAMA, 2014, 312(9), 974. https://jamanetwork.com/journals/jama/fullarticle/1900513

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