Online calculator to convert gigajoules to megajoules (GJ 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 GJ to megajoules
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Conversion Definitions
The following is a list of definitions relating to conversions between gigajoules and megajoules.
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.
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.
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 megajoules is:
megajoules = GJ x 1,000
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from gigajoules to megajoules (GJ to MJ).
Gigajoule to Megajoule Conversion Example
Task: Convert 8 GJ to megajoules (show work) Formula: GJ x 1,000 = megajoules Calculations: 8 GJ x 1,000 = 8,000 megajoules Result: 8 GJ is equal to 8,000 megajoules
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from gigajoules to megajoules.
Gigajoules to Megajoules Conversion Chart
| gigajoules (GJ) | megajoules (MJ) |
|---|---|
| 1 GJ | 1,000 MJ |
| 2 GJ | 2,000 MJ |
| 3 GJ | 3,000 MJ |
| 4 GJ | 4,000 MJ |
| 5 GJ | 5,000 MJ |
| 6 GJ | 6,000 MJ |
| 7 GJ | 7,000 MJ |
| 8 GJ | 8,000 MJ |
| 9 GJ | 9,000 MJ |
| 10 GJ | 10,000 MJ |
| 20 GJ | 20,000 MJ |
| 30 GJ | 30,000 MJ |
| 40 GJ | 40,000 MJ |
| 50 GJ | 50,000 MJ |
| 75 GJ | 75,000 MJ |
| 100 GJ | 100,000 MJ |
| 250 GJ | 250,000 MJ |
| 500 GJ | 500,000 MJ |
| 750 GJ | 750,000 MJ |
| 1,000 GJ | 1,000,000 MJ |
| 2,500 GJ | 2,500,000 MJ |
| 5,000 GJ | 5,000,000 MJ |
| 7,500 GJ | 7,500,000 MJ |
| 10,000 GJ | 10,000,000 MJ |
| 25,000 GJ | 25,000,000 MJ |
| 50,000 GJ | 50,000,000 MJ |
| 75,000 GJ | 75,000,000 MJ |
| 100,000 GJ | 100,000,000 MJ |
| 250,000 GJ | 250,000,000 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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