Kilowatt-Hours to Kilojoules Converter

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


Result in Kilojoules:

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1 kWh = 3,600 kJ

Do you want to convert kilojoules to kilowatt-hours?

How to Convert Kilowatt-Hours to Kilojoules

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

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

kilojoules = kilowatt-hours × 3,600

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

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

How Many Kilojoules Are in a Kilowatt-Hour?

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

1 kWh = 3,600 kJ

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

What Is a Kilowatt-Hour?

A kilowatt-hour is a measure of electrical energy equal to one kilowatt, or 1,000 watts, of power over a one hour period. Kilowatt-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.

Kilowatt-hours are usually abbreviated as kWh, although the formally adopted expression is kW·h. The abbreviation kW h is also sometimes used. For example, 1 kilowatt-hour can be written as 1 kWh, 1 kW·h, or 1 kW 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 kilowatt-hours.

What Is a Kilojoule?

One kilojoule is equal to 1,000 joules, which is 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 thousands, or 103. Kilojoules can be abbreviated as kJ; for example, 1 kilojoule can be written as 1 kJ.

Learn more about kilojoules.

Kilowatt-Hour to Kilojoule Conversion Table

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


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

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