Convert megajoules to J

Conversion Calculator

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How to convert megajoules to J: Enter a value in the megajoules field and click on the "Calculate J" button. Your answer will appear in the J field.

Conversion Definitions

The following is a list of definitions relating to conversions between megajoules and joules.

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 0.000001 megajoules in a joule.

What is a joule (J)?

A joule is a unit of energy in the International System of Units (SI). The symbol for joule is J. There are 1,000,000 joules 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 J is:

J = megajoules x 1,000,000

Conversion Example

Next, let's look at an example showing the work and calculations that are involved in converting from megajoules to joules (MJ to J).

Megajoule to Joule Conversion Example

Task: Convert 4 megajoules to joules (show work)

Formula:
megajoules x 1,000,000 = J

Calculations:
4 megajoules x 1,000,000 = 4,000,000 J

Result:
4 megajoules is equal to 4,000,000 J

Conversion Table

For quick reference purposes, below is a conversion table that you can use to convert from megajoules to joules.

Megajoules to Joules Conversion Chart

megajoules (MJ)	joules (J)
1 MJ	1,000,000 J
2 MJ	2,000,000 J
3 MJ	3,000,000 J
4 MJ	4,000,000 J
5 MJ	5,000,000 J
6 MJ	6,000,000 J
7 MJ	7,000,000 J
8 MJ	8,000,000 J
9 MJ	9,000,000 J
10 MJ	10,000,000 J
20 MJ	20,000,000 J
30 MJ	30,000,000 J
40 MJ	40,000,000 J
50 MJ	50,000,000 J
75 MJ	75,000,000 J
100 MJ	100,000,000 J
250 MJ	250,000,000 J
500 MJ	500,000,000 J
750 MJ	750,000,000 J
1,000 MJ	1,000,000,000 J
2,500 MJ	2,500,000,000 J
5,000 MJ	5,000,000,000 J
7,500 MJ	7,500,000,000 J
10,000 MJ	10,000,000,000 J
25,000 MJ	25,000,000,000 J
50,000 MJ	50,000,000,000 J
75,000 MJ	75,000,000,000 J
100,000 MJ	100,000,000,000 J
250,000 MJ	250,000,000,000 J

Related Units

This table provides a summary of the Energy units within their respective measurement systems.

Unit	Symbol	Measurement System	Description
calories (thermochemical)	cal	International System of Units (SI)	1 cal = 4.184 J
kilocalories	kcal	International System of Units (SI)	1,000 cal = 1 kcal
British Thermal Unit	BTU or Btu	Imperial System	1 BTU = 1,055 J
joules	J	International System of Units (SI)	base unit
kilojoules	kJ	International System of Units (SI)	1,000 J = 1 kJ
megajoules	MJ	International System of Units (SI)	1,000,000 J = 1 MJ
gigajoules	GJ	International System of Units (SI)	1,000,000,000 J = 1 GJ
terajoules	TJ	International System of Units (SI)	1,000,000,000,000 J = 1 TJ

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