Convert Kilojoules to Watt-hours

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

Results in Watt-hours:

1 kJ = 0.277778 Wh

Do you want to convert watt-hours to kilojoules?

How to Convert Kilojoules to Watt-hours

To convert a kilojoule measurement to a watt-hour measurement, multiply the energy by the conversion ratio. One kilojoule is equal to 0.277778 watt-hours, so use this simple formula to convert:

watt-hours = kilojoules × 0.277778

The energy in watt-hours is equal to the kilojoules multiplied by 0.277778.

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

5 kJ = (5 × 0.277778) = 1.388889 Wh

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

Kilojoules

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.

Watt-hours

The watt-hour is a measure of electrical energy equal to one watt of power over a one hour period.

Watt-hours can be abbreviated as Wh, for example 1 watt-hour can be written as 1 Wh.

Kilojoule Measurements and Equivalent Watt-hour Conversions

Common kilojoule values converted to the equivalent watt-hour value
Kilojoules	Watt-hours
1 kJ	0.277778 Wh
2 kJ	0.555556 Wh
3 kJ	0.833333 Wh
4 kJ	1.1111 Wh
5 kJ	1.3889 Wh
6 kJ	1.6667 Wh
7 kJ	1.9444 Wh
8 kJ	2.2222 Wh
9 kJ	2.5 Wh
10 kJ	2.7778 Wh
11 kJ	3.0556 Wh
12 kJ	3.3333 Wh
13 kJ	3.6111 Wh
14 kJ	3.8889 Wh
15 kJ	4.1667 Wh
16 kJ	4.4444 Wh
17 kJ	4.7222 Wh
18 kJ	5 Wh
19 kJ	5.2778 Wh
20 kJ	5.5556 Wh
21 kJ	5.8333 Wh
22 kJ	6.1111 Wh
23 kJ	6.3889 Wh
24 kJ	6.6667 Wh
25 kJ	6.9444 Wh
26 kJ	7.2222 Wh
27 kJ	7.5 Wh
28 kJ	7.7778 Wh
29 kJ	8.0556 Wh
30 kJ	8.3333 Wh
31 kJ	8.6111 Wh
32 kJ	8.8889 Wh
33 kJ	9.1667 Wh
34 kJ	9.4444 Wh
35 kJ	9.7222 Wh
36 kJ	10 Wh
37 kJ	10.28 Wh
38 kJ	10.56 Wh
39 kJ	10.83 Wh
40 kJ	11.11 Wh

More Kilojoule Energy Conversions

Joules

Convert to Joules: 1 kJ is equal to 1,000 joules
Convert to Megajoules: 1 kJ is equal to 0.001 megajoules
Convert to Gigajoules: 1 kJ is equal to 1.0E-6 gigajoules

Calories

Convert to Calories: 1 kJ is equal to 239.005736 calories
Convert to Kilocalories: 1 kJ is equal to 0.239006 kilocalories
Convert to Megacalories: 1 kJ is equal to 0.000239 megacalories

Watts x Time

Convert to Kilowatt-hours: 1 kJ is equal to 0.000278 kilowatt-hours
Convert to Megawatt-hours: 1 kJ is equal to 2.7778E-7 megawatt-hours
Convert to Watt-seconds: 1 kJ is equal to 1,000 watt-seconds

Thermal Units

Convert to British Thermal Units: 1 kJ is equal to 0.947817 british thermal units
Convert to Million BTU: 1 kJ is equal to 9.4782E-7 million BTU
Convert to Therms: 1 kJ is equal to 9.4782E-6 therms
Convert to Quads: 1 kJ is equal to 9.4782E-16 quads

Electronvolts

Convert to Electronvolts: 1 kJ is equal to 6,241,499,999,999,999,606,784 electronvolts
Convert to Kiloelectronvolts: 1 kJ is equal to 6,241,500,000,000,000,000 kiloelectronvolts
Convert to Megaelectronvolts: 1 kJ is equal to 6,241,500,000,000,000 megaelectronvolts