# Kilocalories to Gigajoules Conversion

Enter the energy in kilocalories below to get the value converted to gigajoules.

Results in Gigajoules: 1 kcal = 4.184E-6 GJ
Hint: use a scientific notation calculator to convert E notation to decimal

## How to Convert Kilocalories to Gigajoules

To convert a kilocalorie measurement to a gigajoule measurement, multiply the energy by the conversion ratio.

Since one kilocalorie is equal to 4.184E-6 gigajoules, you can use this simple formula to convert:

gigajoules = kilocalories × 4.184E-6

The energy in gigajoules is equal to the kilocalories multiplied by 4.184E-6.

For example, here's how to convert 500,000 kilocalories to gigajoules using the formula above.
500,000 kcal = (500,000 × 4.184E-6) = 2.092 GJ

Kilocalories and gigajoules are both units used to measure energy. Keep reading to learn more about each unit of measure.

## Kilocalories

One kilocalorie, is equal to the heat needed to raise the temperature of one kilogram of water from 14.5 to 15.5 degrees Celsius.

Kilocalories can be abbreviated as kcal; for example, 1 kilocalorie can be written as 1 kcal.

When being used to measure nutrition or metabolic processes, the large calorie is used, which is equal to one kilocalorie.

## Gigajoules

One gigajoule is equal to 1,000,000,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.

The gigajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "giga" is the prefix for 109. Gigajoules can be abbreviated as GJ; for example, 1 gigajoule can be written as 1 GJ.

## Kilocalorie to Gigajoule Conversion Table

Kilocalorie measurements converted to gigajoules
Kilocalories Gigajoules
1 kcal 0.000004184 GJ
2 kcal 0.000008368 GJ
3 kcal 0.000012552 GJ
4 kcal 0.000016736 GJ
5 kcal 0.00002092 GJ
6 kcal 0.000025104 GJ
7 kcal 0.000029288 GJ
8 kcal 0.000033472 GJ
9 kcal 0.000037656 GJ
10 kcal 0.00004184 GJ
100 kcal 0.000418 GJ
1,000 kcal 0.004184 GJ
10,000 kcal 0.04184 GJ
100,000 kcal 0.4184 GJ
1,000,000 kcal 4.184 GJ