Online calculator to convert megajoules to kilocalories (MJ 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 megajoules to kilocalories
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Conversion Definitions
The following is a list of definitions relating to conversions between megajoules and kilocalories.
What is a megajoule (MJ)?
A megajoule is a unit of energy in the International System of Units (SI). The symbol for megajoule is MJ. There are 0.004184 megajoules 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 239.00573614 kilocalories in a megajoule. 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 megajoules to kilocalories is:
kilocalories = megajoules ÷ 0.004184
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from megajoules to kilocalories (MJ to kcal).
Megajoule to Kilocalorie Conversion Example
Task: Convert 3,138 megajoules to kilocalories (show work) Formula: megajoules ÷ 0.004184 = kilocalories Calculations: 3,138 megajoules ÷ 0.004184 = 750,000 kilocalories Result: 3,138 megajoules is equal to 750,000 kilocalories
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from megajoules to kilocalories.
Megajoules to Kilocalories Conversion Chart
| megajoules (MJ) | kilocalories (kcal) |
|---|---|
| 1 MJ | 239.00573614 kcal |
| 2 MJ | 478.01147228 kcal |
| 3 MJ | 717.01720841 kcal |
| 4 MJ | 956.02294455 kcal |
| 5 MJ | 1,195.02868069 kcal |
| 6 MJ | 1,434.03441683 kcal |
| 7 MJ | 1,673.04015296 kcal |
| 8 MJ | 1,912.0458891 kcal |
| 9 MJ | 2,151.05162524 kcal |
| 10 MJ | 2,390.05736138 kcal |
| 20 MJ | 4,780.11472275 kcal |
| 30 MJ | 7,170.17208413 kcal |
| 40 MJ | 9,560.22944551 kcal |
| 50 MJ | 11,950.28680688 kcal |
| 75 MJ | 17,925.43021033 kcal |
| 100 MJ | 23,900.57361377 kcal |
| 250 MJ | 59,751.43403442 kcal |
| 500 MJ | 119,502.86806883 kcal |
| 750 MJ | 179,254.30210325 kcal |
| 1,000 MJ | 239,005.73613767 kcal |
| 2,500 MJ | 597,514.34034417 kcal |
| 5,000 MJ | 1,195,028.68068834 kcal |
| 7,500 MJ | 1,792,543.0210325 kcal |
| 10,000 MJ | 2,390,057.36137667 kcal |
| 25,000 MJ | 5,975,143.40344168 kcal |
| 50,000 MJ | 11,950,286.80688337 kcal |
| 75,000 MJ | 17,925,430.21032505 kcal |
| 100,000 MJ | 23,900,573.61376673 kcal |
| 250,000 MJ | 59,751,434.03441683 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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