Joules to Kilowatt-Hours

1 J = 2.77778E-7 kWh

How to convert joules to kilowatt-hours

kWh = J × 2.77778E-7

Equivalently: kWh = J ÷ 3,600,000.

Example: 5 J = 0.000001388889 kWh

Joules to Kilowatt-Hours conversion table

Joules (J)Kilowatt-Hours (kWh)
1 J2.77778E-7 kWh
2 J5.55556E-7 kWh
3 J8.33333E-7 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

About the units

Joules: The joule is the SI unit of energy, equal to the work done by a force of one newton over one meter.

Kilowatt-Hours: The kilowatt-hour is the energy used by a 1 kW device in one hour, equal to 3.6 megajoules. Electricity bills are measured in kWh.

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Frequently asked questions

How many kilowatt-hours are in 1 joule?

1 joule equals 2.77778E-7 kilowatt-hours.

How many joules are in 1 kilowatt-hour?

1 kilowatt-hour equals 3,600,000 joules.

How do I convert joules to kilowatt-hours?

Use the formula kWh = J × 2.77778E-7. Equivalently, kWh = J ÷ 3,600,000.

What is 10 joules in kilowatt-hours?

10 joules equals 0.000002777778 kilowatt-hours.

Related conversions

Factors: NIST SP 811 · SI Brochure · NIST Handbook 44 — Updated