Joules To Megajoules Conversion


1 J = 0.000001 MJ

Want to convert from megajoules to joules instead?

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How to convert joules to megajoules (J to MJ)

The formula for converting joules to megajoules is: MJ = J × 0.000001. To calculate the joule value in megajoules first substitute the joule value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 joule in megajoules we follow these steps:

MJ = J × 0.000001

M1 = J × 0.000001

MJ = 0.000001

In other words, 1 joule is equal to 0.000001 megajoules.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 3 joules to megajoules is:

  1. Understand the conversion formula: MJ = J × 0.000001
  2. Substitute the required value. In this case we substitute 3 for J so the formula becomes: M3 = J × 0.000001
  3. Calculate the result using the provided values. In our example the result is: 3 × 0.000001 = 0.000003 MJ

In summary, 3 joules is equal to 0.000003 megajoules.

Converting megajoules to joules

In order to convert the other way around i.e. megajoules to joules, you would use the following formula: J = MJ × 1000000. To convert megajoules to joules first substitute the megajoule value into the above formula, and then execute the calculation. If we wanted to calculate 1 megajoule in joules we follow these steps:

J = MJ × 1000000

J = 1 × 1000000

J = 1000000

Or in other words, 1 megajoule is equal to 1000000 joules.

Conversion Unit Definitions

What is a Joule?

A joule (J) is the standard unit of energy in the International System of Units (SI). It is defined as the amount of work done when a force of one newton is applied over a distance of one meter in the direction of the force. In other words, one joule is equal to the energy transferred when one watt of power is dissipated for one second.
Mathematically, 1 joule is equal to 1 N × 1 m, or 1 kg × m2/s2 in terms of mass, length, and time.
Joules are a versatile unit of measurement used not only in physics but also in various fields including engineering, chemistry, and biology to quantify energy, work, and heat. For example, it's commonly used to express the energy content of foods, the capacity of batteries, and the energy output of electronic devices.

What is a Megajoule?

A megajoule (MJ) is a metric unit of energy in the International System of Units (SI). One megajoule is equal to 1,000,000 joules or 1×106 joules. The prefix "mega-" signifies a factor of one million, so a megajoule is a large unit of energy, often used in contexts where significant amounts of energy are involved.
Megajoules are commonly used in various scientific, engineering, and industrial applications to measure large quantities of energy. For instance, in the field of nutrition, the energy content of food is sometimes measured in megajoules per serving. In energy-related contexts, such as electricity generation or large-scale industrial processes, the energy output or consumption is often expressed in megajoules.

Joules To Megajoules Conversion Table

Below is a lookup table showing common joules to megajoules conversion values.

Joules (J)Megajoule (MJ)
1 J0.000001 MJ
2 J0.000002 MJ
3 J0.000003 MJ
4 J0.000004 MJ
5 J0.000005 MJ
6 J0.000006 MJ
7 J0.000007 MJ
8 J0.000008 MJ
9 J0.000009 MJ
10 J0.00001 MJ
11 J0.000011 MJ
12 J0.000012 MJ
13 J0.000013 MJ

Other Common Joule Conversions

Below is a table of common conversions from joules to other energy units.

1 joule in ergs10000000 erg
1 joule in kilojoules0.001 kJ
1 joule in gigajoules0.000000001 GJ
1 joule in calories0.2388458966275 cal
1 joule in kilocalories0.0002388458966275 kcal
1 joule in watt hours0.00027777777777778 Wh
1 joule in kilowatt hours0.00000027777777777778 kWh
1 joule in megawatt hours0.00000000027777777777778 MWh
1 joule in watt seconds1 Ws
1 joule in btus0.00094708628903179 Btu
1 joule in therms0.0000000094708628903179 thm
1 joule in quads0.00000000000000000094708628903179 Q
1 joule in electron volts6241509074461000000 eV
1 joule in kilo electron volts6241509074461000 keV
1 joule in mega electron volts6241509074461 MeV