Megawatt-hours to Kilojoules Conversion

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

Results in Kilojoules:
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1 MWh = 3,600,000 kJ

How to Convert Megawatt-hours to Kilojoules

To convert a megawatt-hour measurement to a kilojoule measurement, multiply the energy by the conversion ratio.

Since one megawatt-hour is equal to 3,600,000 kilojoules, you can use this simple formula to convert:

kilojoules = megawatt-hours × 3,600,000

The energy in kilojoules is equal to the megawatt-hours multiplied by 3,600,000.

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

How Many Kilojoules are in a Megawatt-hour?

There are 3,600,000 kilojoules in a megawatt-hour, which is why we use this value in the formula above.

1 MWh = 3,600,000 kJ

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


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]


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

The kilojoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "kilo" is the prefix for 103. Kilojoules can be abbreviated as kJ; for example, 1 kilojoule can be written as 1 kJ.

Megawatt-hour to Kilojoule Conversion Table

Megawatt-hour measurements converted to kilojoules
Megawatt-hours Kilojoules
0.000001 MWh 3.6 kJ
0.000002 MWh 7.2 kJ
0.000003 MWh 10.8 kJ
0.000004 MWh 14.4 kJ
0.000005 MWh 18 kJ
0.000006 MWh 21.6 kJ
0.000007 MWh 25.2 kJ
0.000008 MWh 28.8 kJ
0.000009 MWh 32.4 kJ
0.0000001 MWh 0.36 kJ
0.000001 MWh 3.6 kJ
0.00001 MWh 36 kJ
0.0001 MWh 360 kJ
0.001 MWh 3,600 kJ
0.01 MWh 36,000 kJ
0.1 MWh 360,000 kJ
1 MWh 3,600,000 kJ


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