Online calculator to convert gigajoules to kilocalories (GJ to kcal) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Energy units.
Conversion Calculator
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Convert GJ to kilocalories
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between gigajoules and kilocalories.
What is a gigajoule (GJ)?
A gigajoule is a unit of energy in the International System of Units (SI). The symbol for gigajoule is GJ. There are 0.000004184 gigajoules in a kilocalorie.
What is a kilocalorie (kcal)?
A kilocalorie is a unit of energy in the International System of Units (SI). The symbol for kilocalorie is kcal. There are 239,005.73613767 kilocalories in a gigajoule. A kilocalorie is measured as the quantity of heat required to raise the temperature of 1 kilogram of water by 1°C from a standard initial temperature at a pressure of 1 atmosphere. A kilocalorie is also called a "large calorie" or "kilogram calorie".
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from GJ to kilocalories is:
kilocalories = GJ ÷ 0.000004184
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from gigajoules to kilocalories (GJ to kcal).
Gigajoule to Kilocalorie Conversion Example
Task: Convert 4 GJ to kilocalories (show work) Formula: GJ ÷ 0.000004184 = kilocalories Calculations: 4 GJ ÷ 0.000004184 = 956,022.94455067 kilocalories Result: 4 GJ is equal to 956,022.94455067 kilocalories
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from gigajoules to kilocalories.
Gigajoules to Kilocalories Conversion Chart
| gigajoules (GJ) | kilocalories (kcal) |
|---|---|
| 1 GJ | 239,005.73613767 kcal |
| 2 GJ | 478,011.47227533 kcal |
| 3 GJ | 717,017.208413 kcal |
| 4 GJ | 956,022.94455067 kcal |
| 5 GJ | 1,195,028.68068834 kcal |
| 6 GJ | 1,434,034.416826 kcal |
| 7 GJ | 1,673,040.15296367 kcal |
| 8 GJ | 1,912,045.88910134 kcal |
| 9 GJ | 2,151,051.62523901 kcal |
| 10 GJ | 2,390,057.36137667 kcal |
| 20 GJ | 4,780,114.72275335 kcal |
| 30 GJ | 7,170,172.08413002 kcal |
| 40 GJ | 9,560,229.44550669 kcal |
| 50 GJ | 11,950,286.80688337 kcal |
| 75 GJ | 17,925,430.21032505 kcal |
| 100 GJ | 23,900,573.61376673 kcal |
| 250 GJ | 59,751,434.03441683 kcal |
| 500 GJ | 119,502,868.06883365 kcal |
| 750 GJ | 179,254,302.10325048 kcal |
| 1,000 GJ | 239,005,736.1376673 kcal |
| 2,500 GJ | 597,514,340.34416826 kcal |
| 5,000 GJ | 1,195,028,680.68833652 kcal |
| 7,500 GJ | 1,792,543,021.03250478 kcal |
| 10,000 GJ | 2,390,057,361.37667304 kcal |
| 25,000 GJ | 5,975,143,403.4416826 kcal |
| 50,000 GJ | 11,950,286,806.8833652 kcal |
| 75,000 GJ | 17,925,430,210.3250478 kcal |
| 100,000 GJ | 23,900,573,613.7667304 kcal |
| 250,000 GJ | 59,751,434,034.416826 kcal |
Related Units
This table provides a summary of the Energy units within their respective measurement systems.
| Unit | Symbol | Measurement System |
|---|---|---|
| calories (thermochemical) | cal | International System of Units (SI) |
| kilocalories | kcal | International System of Units (SI) |
| British Thermal Unit | BTU or Btu | Imperial System |
| joules | J | International System of Units (SI) |
| kilojoules | kJ | International System of Units (SI) |
| megajoules | MJ | International System of Units (SI) |
| gigajoules | GJ | International System of Units (SI) |
| terajoules | TJ | International System of Units (SI) |
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