Kilojoules to Kilowatt-Hours Conversion (kJ to kWh)

Kilojoules to Kilowatt-Hours Converter

Enter the energy in kilojoules below to convert it to kilowatt-hours.

Result in Kilowatt-Hours:

1 kJ = 0.000278 kWh

How to Convert Kilojoules to Kilowatt-Hours

To convert a measurement in kilojoules to a measurement in kilowatt-hours, divide 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:

kilowatt-hours = kilojoules ÷ 3,600

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

For example, here's how to convert 5,000 kilojoules to kilowatt-hours using the formula above.

kilowatt-hours = (5,000 kJ ÷ 3,600) = 1.388889 kWh

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

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.

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.

Kilojoule to Kilowatt-Hour Conversion Table

Table showing various kilojoule measurements converted to kilowatt-hours.
Kilojoules	Kilowatt-hours
1 kJ	0.000278 kWh
2 kJ	0.000556 kWh
3 kJ	0.000833 kWh
4 kJ	0.001111 kWh
5 kJ	0.001389 kWh
6 kJ	0.001667 kWh
7 kJ	0.001944 kWh
8 kJ	0.002222 kWh
9 kJ	0.0025 kWh
10 kJ	0.002778 kWh
20 kJ	0.005556 kWh
30 kJ	0.008333 kWh
40 kJ	0.011111 kWh
50 kJ	0.013889 kWh
60 kJ	0.016667 kWh
70 kJ	0.019444 kWh
80 kJ	0.022222 kWh
90 kJ	0.025 kWh
100 kJ	0.027778 kWh
200 kJ	0.055556 kWh
300 kJ	0.083333 kWh
400 kJ	0.111111 kWh
500 kJ	0.138889 kWh
600 kJ	0.166667 kWh
700 kJ	0.194444 kWh
800 kJ	0.222222 kWh
900 kJ	0.25 kWh
1,000 kJ	0.277778 kWh
2,000 kJ	0.555556 kWh
3,000 kJ	0.833333 kWh
4,000 kJ	1.1111 kWh
5,000 kJ	1.3889 kWh
6,000 kJ	1.6667 kWh
7,000 kJ	1.9444 kWh
8,000 kJ	2.2222 kWh
9,000 kJ	2.5 kWh
10,000 kJ	2.7778 kWh

Table showing various kilojoule measurements converted to kilowatt-hours.

Kilojoules

Kilowatt-hours

1 kJ

0.000278 kWh

2 kJ

0.000556 kWh

3 kJ

0.000833 kWh

4 kJ

0.001111 kWh

5 kJ

0.001389 kWh

6 kJ

0.001667 kWh

7 kJ

0.001944 kWh

8 kJ

0.002222 kWh

9 kJ

0.0025 kWh

10 kJ

0.002778 kWh

20 kJ

0.005556 kWh

30 kJ

0.008333 kWh

40 kJ

0.011111 kWh

50 kJ

0.013889 kWh

60 kJ

0.016667 kWh

70 kJ

0.019444 kWh

80 kJ

0.022222 kWh

90 kJ

0.025 kWh

100 kJ

0.027778 kWh

200 kJ

0.055556 kWh

300 kJ

0.083333 kWh

400 kJ

0.111111 kWh

500 kJ

0.138889 kWh

600 kJ

0.166667 kWh

700 kJ

0.194444 kWh

800 kJ

0.222222 kWh

900 kJ

0.25 kWh

1,000 kJ

0.277778 kWh

2,000 kJ

0.555556 kWh

3,000 kJ

0.833333 kWh

4,000 kJ

1.1111 kWh

5,000 kJ

1.3889 kWh

6,000 kJ

1.6667 kWh

7,000 kJ

1.9444 kWh

8,000 kJ

2.2222 kWh

9,000 kJ

2.5 kWh

10,000 kJ

2.7778 kWh

References

Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf