kcal to GJ | Convert Kilocalorie to Gigajoule

Kilocalorie to Gigajoule Conversion Formula

To convert from Kilocalorie (kcal) to Gigajoule (GJ), use the following formula:

$\textbf{ Gigajoule} \text{ (GJ)}$

$= 1000 \times 4.184 \times \frac{1}{10^{9}}\times \textbf{ Kilocalorie} \text{ (kcal)}$

$= \frac{1}{10^{6}} \times 4.184\times \textbf{ Kilocalorie} \text{ (kcal)}$

$= 0.000004184\times \textbf{ Kilocalorie} \text{ (kcal)}$

With $4.184$ is the ratio between the base units Joule (J) and calorie (cal).

Example

Let's convert 5 Kilocalorie (kcal) to Gigajoule (GJ).

Using the formula:

$5 \times 0.000004184 = 0.00002092$

Therefore, 5 Kilocalorie (kcal) is equal to $0.00002092$ Gigajoule (GJ).

What is a Kilocalorie (kcal)?

A Kilocalorie (kcal) is a unit of energy, equal to one thousand calories (1000 cal). The plural form is Kilocalories.

What is a Gigajoule (GJ)?

A Gigajoule (GJ) is a unit of energy in the International System of Units (SI), equal to one billion Joules (10⁹ J). The plural form is Gigajoules.

What is the International System of Units (SI)?

The International System of Units (SI) is the modern form of the metric system and the most widely used system of measurement in the world. It is founded on seven fundamental units: the second (time), meter (length), kilogram (mass), ampere (electric current), kelvin (thermodynamic temperature), mole (amount of substance), and candela (luminous intensity).

Kilocalorie to Gigajoule Conversion Table

Here are some quick reference conversions from Kilocalorie (kcal) to Gigajoule (GJ):

Kilocalories	Gigajoules
0.000001 kcal	$4.184\times 10^{-12}$ GJ
0.001 kcal	$4.184\times 10^{-9}$ GJ
0.1 kcal	$4.184\times 10^{-7}$ GJ
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
20 kcal	$0.00008368$ GJ
30 kcal	$0.00012552$ GJ
40 kcal	$0.00016736$ GJ
50 kcal	$0.0002092$ GJ
100 kcal	$0.0004184$ GJ
1000 kcal	$0.004184$ GJ
10000 kcal	$0.04184$ GJ