# Megacalories to Gigajoules Converter

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

Results in Gigajoules: 1 Mcal = 0.004184 GJ

Do you want to convert gigajoules to megacalories?

## How to Convert Megacalories to Gigajoules

To convert a measurement in megacalories to a measurement in gigajoules, multiply the energy by the following conversion ratio: 0.004184 gigajoules/megacalorie.

Since one megacalorie is equal to 0.004184 gigajoules, you can use this simple formula to convert:

gigajoules = megacalories × 0.004184

The energy in gigajoules is equal to the energy in megacalories multiplied by 0.004184.

For example, here's how to convert 500 megacalories to gigajoules using the formula above.
gigajoules = (500 Mcal × 0.004184) = 2.092 GJ

## What is a Megacalorie?

One megacalorie is equal to 1,000,000 calories, which is the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius. One megacalorie is equal to 4.184 megajoules.

Megacalories can be abbreviated as Mcal; for example, 1 megacalorie can be written as 1 Mcal.

## What is a Gigajoule?

One gigajoule is equal to 1,000,000,000 joules, which is 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 billions, or 109. Gigajoules can be abbreviated as GJ; for example, 1 gigajoule can be written as 1 GJ.

## Megacalorie to Gigajoule Conversion Table

Table showing various megacalorie measurements converted to gigajoules.
Megacalories Gigajoules
1 Mcal 0.004184 GJ
2 Mcal 0.008368 GJ
3 Mcal 0.012552 GJ
4 Mcal 0.016736 GJ
5 Mcal 0.02092 GJ
6 Mcal 0.025104 GJ
7 Mcal 0.029288 GJ
8 Mcal 0.033472 GJ
9 Mcal 0.037656 GJ
10 Mcal 0.04184 GJ
20 Mcal 0.08368 GJ
30 Mcal 0.12552 GJ
40 Mcal 0.16736 GJ
50 Mcal 0.2092 GJ
60 Mcal 0.25104 GJ
70 Mcal 0.29288 GJ
80 Mcal 0.33472 GJ
90 Mcal 0.37656 GJ
100 Mcal 0.4184 GJ
200 Mcal 0.8368 GJ
300 Mcal 1.2552 GJ
400 Mcal 1.6736 GJ
500 Mcal 2.092 GJ
600 Mcal 2.5104 GJ
700 Mcal 2.9288 GJ
800 Mcal 3.3472 GJ
900 Mcal 3.7656 GJ
1,000 Mcal 4.184 GJ