Convert kilojoules to kilowatt-hours

1 kJ = 0.000277777777778 kWh — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.

0.000 277 777 777 778kWh
≈ Rounded to 12 s.f. 1 kJ ≈ 0.000 277 777 777 778 kWh
As a fraction: 1/3600
1 kJ = 0.000277777777778 kWh

How to convert kilojoules to kilowatt-hours

Multiply the number of kilojoules by 0.000277777777778 to get kilowatt-hours.

Kilowatt-hour: How electricity is billed everywhere.

Kilojoule to Kilowatt-hour conversion table

Kilojoules (kJ) Kilowatt-hours (kWh)
1 kJ 0.000 277 777 78
2 kJ 0.000 555 555 56
3 kJ 0.000 833 333 33
5 kJ 0.001 388 888 9
10 kJ 0.002 777 777 8
20 kJ 0.005 555 555 6
25 kJ 0.006 944 444 4
50 kJ 0.013 888 889
100 kJ 0.027 777 778
250 kJ 0.069 444 444
500 kJ 0.138 888 89
1000 kJ 0.277 777 78

Kilowatt-hour to Kilojoule conversion table

Kilowatt-hours (kWh) Kilojoules (kJ)
1 kWh 3600
2 kWh 7200
3 kWh 10 800
5 kWh 18 000
10 kWh 36 000
20 kWh 72 000
25 kWh 90 000
50 kWh 180 000
100 kWh 360 000
250 kWh 900 000
500 kWh 1 800 000
1000 kWh 3 600 000

Frequently asked

How many kilowatt-hours are in a kilojoule?

One kilojoule equals 0.0002777777778 kilowatt-hours (kJ → kWh). That figure is exact, not rounded.

How do you convert kilojoules to kilowatt-hours?

Multiply the number of kilojoules by 0.000277777777778 to get kilowatt-hours.

What is 1 kWh in kilojoules?

One kilowatt-hour is 3600 kilojoules.

What is 10 kJ in kWh?

10 kJ = 0.002 777 777 8 kWh.

What exactly is a kilowatt-hour?

How electricity is billed everywhere.

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