Online calculator to convert kilojoules to megajoules (kJ to MJ) 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 kJ to megajoules
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Conversion Definitions
The following is a list of definitions relating to conversions between kilojoules and megajoules.
What is a kilojoule (kJ)?
A kilojoule is a unit of energy in the International System of Units (SI). The symbol for kilojoule is kJ. There are 1,000 kilojoules in a megajoule.
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 0.001 megajoules in a kilojoule.
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 kJ to megajoules is:
megajoules = kJ ÷ 1,000
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from kilojoules to megajoules (kJ to MJ).
Kilojoule to Megajoule Conversion Example
Task: Convert 845 kilojoules to megajoules (show work) Formula: kJ ÷ 1,000 = megajoules Calculations: 845 kJ ÷ 1,000 = 0.845 megajoules Result: 845 kJ is equal to 0.845 megajoules
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from kilojoules to megajoules.
Kilojoules to Megajoules Conversion Chart
| kilojoules (kJ) | megajoules (MJ) |
|---|---|
| 1 kJ | 0.001 MJ |
| 2 kJ | 0.002 MJ |
| 3 kJ | 0.003 MJ |
| 4 kJ | 0.004 MJ |
| 5 kJ | 0.005 MJ |
| 6 kJ | 0.006 MJ |
| 7 kJ | 0.007 MJ |
| 8 kJ | 0.008 MJ |
| 9 kJ | 0.009 MJ |
| 10 kJ | 0.01 MJ |
| 20 kJ | 0.02 MJ |
| 30 kJ | 0.03 MJ |
| 40 kJ | 0.04 MJ |
| 50 kJ | 0.05 MJ |
| 75 kJ | 0.075 MJ |
| 100 kJ | 0.1 MJ |
| 250 kJ | 0.25 MJ |
| 500 kJ | 0.5 MJ |
| 750 kJ | 0.75 MJ |
| 1,000 kJ | 1 MJ |
| 2,500 kJ | 2.5 MJ |
| 5,000 kJ | 5 MJ |
| 7,500 kJ | 7.5 MJ |
| 10,000 kJ | 10 MJ |
| 25,000 kJ | 25 MJ |
| 50,000 kJ | 50 MJ |
| 75,000 kJ | 75 MJ |
| 100,000 kJ | 100 MJ |
| 250,000 kJ | 250 MJ |
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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