Megawatt-Hours to Megajoules Converter

Enter the energy in megawatt-hours below to get the value converted to megajoules.


Result in Megajoules:

Loading content.
1 MWh = 3,600 MJ

Do you want to convert megajoules to megawatt-hours?

How to Convert Megawatt-Hours to Megajoules

To convert a measurement in megawatt-hours to a measurement in megajoules, multiply the energy by the following conversion ratio: 3,600 megajoules/megawatt-hour.

Since one megawatt-hour is equal to 3,600 megajoules, you can use this simple formula to convert:

megajoules = megawatt-hours × 3,600

The energy in megajoules is equal to the energy in megawatt-hours multiplied by 3,600.

For example, here's how to convert 5 megawatt-hours to megajoules using the formula above.
megajoules = (5 MWh × 3,600) = 18,000 MJ

How Many Megajoules Are in a Megawatt-Hour?

There are 3,600 megajoules in a megawatt-hour, which is why we use this value in the formula above.

1 MWh = 3,600 MJ

Megawatt-hours and megajoules are both units used to measure energy. Keep reading to learn more about each unit of measure.

What Is a Megawatt-Hour?

A megawatt-hour is a measure of electrical energy equal to one megawatt, or 1,000,000 watts, of power over a one hour period. Megawatt-hours are a measure of electrical work performed over a period of time, and are often used as a way of measuring energy usage by electric companies.

Megawatt-hours are usually abbreviated as MWh, although the formally adopted expression is MW·h. The abbreviation MW h is also sometimes used. For example, 1 megawatt-hour can be written as 1 MWh, 1 MW·h, or 1 MW h.

In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.[1]

Learn more about megawatt-hours.

What Is a Megajoule?

One megajoule is equal to 1,000,000 joules, which is the energy equal to the force on an object of one newton at a distance of one meter.

The megajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "mega" is the prefix for millions, or 106. Megajoules can be abbreviated as MJ; for example, 1 megajoule can be written as 1 MJ.

Learn more about megajoules.

Megawatt-Hour to Megajoule Conversion Table

Table showing various megawatt-hour measurements converted to megajoules.
Megawatt-hours Megajoules
0.001 MWh 3.6 MJ
0.002 MWh 7.2 MJ
0.003 MWh 10.8 MJ
0.004 MWh 14.4 MJ
0.005 MWh 18 MJ
0.006 MWh 21.6 MJ
0.007 MWh 25.2 MJ
0.008 MWh 28.8 MJ
0.009 MWh 32.4 MJ
0.01 MWh 36 MJ
0.02 MWh 72 MJ
0.03 MWh 108 MJ
0.04 MWh 144 MJ
0.05 MWh 180 MJ
0.06 MWh 216 MJ
0.07 MWh 252 MJ
0.08 MWh 288 MJ
0.09 MWh 324 MJ
0.1 MWh 360 MJ
0.2 MWh 720 MJ
0.3 MWh 1,080 MJ
0.4 MWh 1,440 MJ
0.5 MWh 1,800 MJ
0.6 MWh 2,160 MJ
0.7 MWh 2,520 MJ
0.8 MWh 2,880 MJ
0.9 MWh 3,240 MJ
1 MWh 3,600 MJ


  1. Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019,

More Megawatt-Hour & Megajoule Conversions