Convert Megajoule (MJ) to Joule (J)
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Updated on September 1, 2025
You can use our Megajoule (MJ) to Joule (J) conversion calculator as a reliable and efficient tool to simplify energy conversions. It is designed for professionals, students, and anyone who needs a quick and accurate result. Conversion of Megajoule (MJ) to Joule (J) is crucial in Industry, Large-Scale Energy related measurements. You can avoid the risk of manual calculation errors and save valuable time using our Megajoule (MJ) to Joule (J) converter.About Megajoule (MJ) to Joule (J) Conversion Calculator
Written By
Nadiba Rahman
Reviewed by
Mrinmoy Roy
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Relation Between Megajoule (MJ) and Joule (J)
Let me explain to you about the relation between Megajoule MJ and Joule (J) first before moving to the conversion process. Because it’s essential to grasp what these units represent.What is Megajoule (MJ)?
A megajoule is a unit of energy equal to one million joules. Megajoule (MJ) is a unit of energy measurement which is commonly used in Industry, Large-Scale Energy. Megajoules are used to measure large amounts of energy, such as the kinetic energy of moving objects and the energy released in explosions..What is Joule (J)?
Megajoule (MJ) is another unit of energy measurement that is used in Physics, Energy. The joule is the SI unit of energy, defined as the amount of work done when a force of one newton is applied over a distance of one meter. 2 . Megajoules are used to measure large amounts of energy, such as the kinetic energy of moving objects and the energy released in explosions..How to Convert Joule (J)?
The conversion between Megajoule (MJ) and Joule (J) follows a simple formula:Megajoule = Megajoule × 1000000
Where, 1000000 is the value that allows you to convert between Megajoule (MJ) and Joule (J).
So,
1 Joule = 1000000 Megajoule
And, 1 Megajoule = 1/1000000 Joule

Examples of Converting Megajoule (MJ) to Joule (J)
To convert any value from Megajoule (MJ) to Joule (J), simply multiply the amount of Megajoule (MJ) by the conversion factor:1 Joule = 1000000 Megajoule
For example, if you want to convert 5 Megajoule into Joule and the conversion factor is 1000000, then:
5 Megajoule = 5 x 1000000 Joule
Megajoule (MJ) to Joule (J) Conversion Chart
Here’s a quick reference chart for common conversions between Megajoule (MJ) and Joule (J)| Megajoule (MJ) | Joule (J) |
|---|---|
| 5 Megajoule (MJ) | 5000000 Joule (J) |
| 10 Megajoule (MJ) | 10000000 Joule (J) |
| 15 Megajoule (MJ) | 15000000 Joule (J) |
| 20 Megajoule (MJ) | 20000000 Joule (J) |
| 25 Megajoule (MJ) | 25000000 Joule (J) |
| 30 Megajoule (MJ) | 30000000 Joule (J) |
| 35 Megajoule (MJ) | 35000000 Joule (J) |
| 40 Megajoule (MJ) | 40000000 Joule (J) |
| 45 Megajoule (MJ) | 45000000 Joule (J) |
| 50 Megajoule (MJ) | 50000000 Joule (J) |
How 1 Megajoule (MJ) Converts to Other energy Units
See the relation between Megajoule (MJ) and other energy related measurement units:| 1 Megajoule(MJ) | 947.817000 British Thermal Unit (BTU) |
| 1 Megajoule(MJ) | 239005.700000 Calorie (cal) |
| 1 Megajoule(MJ) | 10000000000000.000000 Erg (erg) |
| 1 Megajoule(MJ) | 6.24150912588325e+24 Electronvolt (ev) |
| 1 Megajoule(MJ) | 0.000000 Exajoule (EJ) |
| 1 Megajoule(MJ) | 737562.149000 Foot-pound (ft lbs) |
| 1 Megajoule(MJ) | 0.001000 Gigajoule (GJ) |
| 1 Megajoule(MJ) | 0.000278 Gigawatt-hour (GWh) |
| 1 Megajoule(MJ) | 239.005700 Kilocalorie (KCal) |
| 1 Megajoule(MJ) | 1000.000000 Kilojoule (KJ) |
| 1 Megajoule(MJ) | 0.277778 Megawatt-hour (MWh) |
| 1 Megajoule(MJ) | 0.947817 Natural Gas Low Heating Value (NG LHV) |
| 1 Megajoule(MJ) | 1000000.000000 Newton-meter (Nm) |
| 1 Megajoule(MJ) | 0.000095 Therms |
| 1 Megajoule(MJ) | 277.777778 Watt-hour (Wh) |
| 1 Megajoule(MJ) | 0.277778 Kilowatt-hour (kwh) |
| 1 Megajoule(MJ) | 1000000.000000 Watt-second (Ws) |
Features of Our Megajoule (MJ) to Joule (J) Conversion Calculator
Our Megajoule MJ to Joule (J) converter is more than just a basic converter. Here's what makes it stand out:Output Precision Control
You can control how precise your conversion results are. From settings, you can adjust decimal places from 0 to 12 places.Customizable Rounding Options
You can control the output rounding options based on your necessity. You can turn the rounding mode on or off, and select between Ceiling or Floor rounding to match your needs.Multiple Number Formats
Display your results the way you want:- Standard format (e.g. 12.345245)
- Scientific notation (e.g. 1.23452e+1)
- Engineering format (e.g. 1.23452 × 10^1)

