Online calculator to convert megajoules to gigajoules (MJ to GJ) 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 GJ
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Conversion Definitions
The following is a list of definitions relating to conversions between megajoules and gigajoules.
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 1,000 megajoules in a gigajoule.
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 0.001 gigajoules in a megajoule.
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 GJ is:
GJ = megajoules ÷ 1,000
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from megajoules to gigajoules (MJ to GJ).
Megajoule to Gigajoule Conversion Example
Task: Convert 635 megajoules to gigajoules (show work) Formula: megajoules ÷ 1,000 = GJ Calculations: 635 megajoules ÷ 1,000 = 0.635 GJ Result: 635 megajoules is equal to 0.635 GJ
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from megajoules to gigajoules.
Megajoules to Gigajoules Conversion Chart
| megajoules (MJ) | gigajoules (GJ) |
|---|---|
| 1 MJ | 0.001 GJ |
| 2 MJ | 0.002 GJ |
| 3 MJ | 0.003 GJ |
| 4 MJ | 0.004 GJ |
| 5 MJ | 0.005 GJ |
| 6 MJ | 0.006 GJ |
| 7 MJ | 0.007 GJ |
| 8 MJ | 0.008 GJ |
| 9 MJ | 0.009 GJ |
| 10 MJ | 0.01 GJ |
| 20 MJ | 0.02 GJ |
| 30 MJ | 0.03 GJ |
| 40 MJ | 0.04 GJ |
| 50 MJ | 0.05 GJ |
| 75 MJ | 0.075 GJ |
| 100 MJ | 0.1 GJ |
| 250 MJ | 0.25 GJ |
| 500 MJ | 0.5 GJ |
| 750 MJ | 0.75 GJ |
| 1,000 MJ | 1 GJ |
| 2,500 MJ | 2.5 GJ |
| 5,000 MJ | 5 GJ |
| 7,500 MJ | 7.5 GJ |
| 10,000 MJ | 10 GJ |
| 25,000 MJ | 25 GJ |
| 50,000 MJ | 50 GJ |
| 75,000 MJ | 75 GJ |
| 100,000 MJ | 100 GJ |
| 250,000 MJ | 250 GJ |
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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