Convert Watt-hours to Kilojoules

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

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Results in Kilojoules:
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1 Wh = 3.6 kJ

How to Convert Watt-hours to Kilojoules

To convert a watt-hour measurement to a kilojoule measurement, multiply the energy by the conversion ratio. One watt-hour is equal to 3.6 kilojoules, so use this simple formula to convert:

kilojoules = watt-hours × 3.6

The energy in kilojoules is equal to the watt-hours multiplied by 3.6.

For example, here's how to convert 5 watt-hours to kilojoules using the formula above.
5 Wh = (5 × 3.6) = 18 kJ

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

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.

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-hour Measurements and Equivalent Kilojoule Conversions

Common watt-hour values converted to the equivalent kilojoule value
Watt-hours Kilojoules
1 Wh 3.6 kJ
2 Wh 7.2 kJ
3 Wh 10.8 kJ
4 Wh 14.4 kJ
5 Wh 18 kJ
6 Wh 21.6 kJ
7 Wh 25.2 kJ
8 Wh 28.8 kJ
9 Wh 32.4 kJ
10 Wh 36 kJ
11 Wh 39.6 kJ
12 Wh 43.2 kJ
13 Wh 46.8 kJ
14 Wh 50.4 kJ
15 Wh 54 kJ
16 Wh 57.6 kJ
17 Wh 61.2 kJ
18 Wh 64.8 kJ
19 Wh 68.4 kJ
20 Wh 72 kJ
21 Wh 75.6 kJ
22 Wh 79.2 kJ
23 Wh 82.8 kJ
24 Wh 86.4 kJ
25 Wh 90 kJ
26 Wh 93.6 kJ
27 Wh 97.2 kJ
28 Wh 100.8 kJ
29 Wh 104.4 kJ
30 Wh 108 kJ
31 Wh 111.6 kJ
32 Wh 115.2 kJ
33 Wh 118.8 kJ
34 Wh 122.4 kJ
35 Wh 126 kJ
36 Wh 129.6 kJ
37 Wh 133.2 kJ
38 Wh 136.8 kJ
39 Wh 140.4 kJ
40 Wh 144 kJ

More Watt-hour Energy Conversions

Joules
Convert to Joules
1 Wh is equal to 3,600 joules
Convert to Megajoules
1 Wh is equal to 0.0036 megajoules
Convert to Gigajoules
1 Wh is equal to 3.6E-6 gigajoules
Calories
Convert to Calories
1 Wh is equal to 860.42065 calories
Convert to Kilocalories
1 Wh is equal to 0.860421 kilocalories
Convert to Megacalories
1 Wh is equal to 0.00086 megacalories
Watts x Time
Convert to Kilowatt-hours
1 Wh is equal to 0.001 kilowatt-hours
Convert to Megawatt-hours
1 Wh is equal to 1.0E-6 megawatt-hours
Convert to Watt-seconds
1 Wh is equal to 3,600 watt-seconds
Thermal Units
Convert to British Thermal Units
1 Wh is equal to 3.412142 british thermal units
Convert to Million BTU
1 Wh is equal to 3.4121E-6 million BTU
Convert to Therms
1 Wh is equal to 3.4121E-5 therms
Convert to Quads
1 Wh is equal to 3.4121E-15 quads
Electronvolts
Convert to Electronvolts
1 Wh is equal to 22,469,000,000,000,000,786,432 electronvolts
Convert to Kiloelectronvolts
1 Wh is equal to 22,469,000,000,000,000,000 kiloelectronvolts
Convert to Megaelectronvolts
1 Wh is equal to 22,469,000,000,000,000 megaelectronvolts