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Convert Joules to Kilowatt Hours

1 joule = 2.777778e-07 kilowatt hours. Type any value below to convert in either direction — the calculation happens in your browser.

Joules to Kilowatt Hours formula

Multiply the number of joules by 2.777778e-07 to get kilowatt hours.

kilowatt hours = joules × 2.777778e-07

To go the other way: divide the number of kilowatt hours by 2.777778e-07, or multiply by 3600000.

joules = kilowatt hours ÷ 2.777778e-07

Joules to Kilowatt Hours conversion table

JoulesKilowatt Hours
1 J2.777778e-07 kWh
2 J5.555556e-07 kWh
3 J8.333333e-07 kWh
4 J0.000001111111 kWh
5 J0.000001388889 kWh
6 J0.000001666667 kWh
7 J0.000001944444 kWh
8 J0.000002222222 kWh
9 J0.0000025 kWh
10 J0.000002777778 kWh
15 J0.000004166667 kWh
20 J0.000005555556 kWh
25 J0.000006944444 kWh
30 J0.000008333333 kWh
40 J0.00001111111 kWh
50 J0.00001388889 kWh
75 J0.00002083333 kWh
100 J0.00002777778 kWh
250 J0.00006944444 kWh
500 J0.0001388889 kWh
1,000 J0.0002777778 kWh

Kilowatt Hours to Joules conversion table

Kilowatt HoursJoules
1 kWh3,600,000 J
2 kWh7,200,000 J
3 kWh10,800,000 J
4 kWh14,400,000 J
5 kWh18,000,000 J
6 kWh21,600,000 J
7 kWh25,200,000 J
8 kWh28,800,000 J
9 kWh32,400,000 J
10 kWh36,000,000 J

About the joule

The joule is the SI unit of energy — the work done by one newton acting over one metre.

About the kilowatt hour

A kilowatt hour is the unit on your electricity bill — 3.6 million joules.

Frequently asked questions

How many kilowatt hours are in a joule?

There are 2.777778e-07 kilowatt hours in one joule.

How many joules are in a kilowatt hour?

There are 3,600,000 joules in one kilowatt hour.

Is this conversion exact?

The conversion factor is fixed, but its decimal expansion is infinite, so values are rounded to seven significant figures for display.

What is 10 joules in kilowatt hours?

10 joules equals 0.000002777778 kilowatt hours.

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