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
As a fraction: 1/3600
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1 kJ = 0.000277777777778 kWh
Show this value in all 39 energy & work units
- Petajoules PJ 1e-12
- Terajoules TJ 1e-9
- Gigajoules GJ 0.000 001
- Megajoules MJ 0.001
- Kilojoules kJ 1
- Joules J 1000
- Millijoules mJ 1 000 000
- Microjoules µJ 1 000 000 000
- Nanojoules nJ 1 000 000 000 000
- Watt-hours Wh 0.277 777 777 778
- Kilowatt-hours kWh 0.000 277 777 777 778
- Megawatt-hours MWh 0.000 000 277 777 777 778
- Gigawatt-hours GWh 2.77777777778e-10
- Terawatt-hours TWh 2.77777777778e-13
- Calorie (thermochemical)s cal 239.005 736 138
- Kilocalories kcal 0.239 005 736 138
- Calorie (IT)s cal (IT) 238.845 896 627
- Kilocalorie (IT)s kcal (IT) 0.238 845 896 627
- British thermal units BTU 0.947 817 120 313
- BTU (thermochemical)s BTU (th) 0.948 451 652 677
- Million BTUs MMBTU 0.000 000 947 817 120 313
- Therm (US)s thm 0.000 009 480 434 279 73
- Therm (EC)s thm (EC) 0.000 009 478 169 879 13
- Electronvolts eV 6.24150907446e+21
- Kiloelectronvolts keV 6.24150907446e+18
- Megaelectronvolts MeV 6 241 509 074 460 000
- Gigaelectronvolts GeV 6 241 509 074 460
- Teraelectronvolts TeV 6 241 509 074.46
- Ergs erg 10 000 000 000
- Foot-pounds ft·lbf 737.562 149 277
- Inch-pounds in·lbf 8850.745 791 33
- Foot-poundals ft·pdl 23 730.360 404 2
- Horsepower-hours hp·h 0.000 372 506 135 999
- Tonne of TNTs t TNT 0.000 000 239 005 736 138
- Kiloton of TNTs kt TNT 2.39005736138e-10
- Megaton of TNTs Mt TNT 2.39005736138e-13
- Hartrees Eₕ 2.2937122784e+20
- Rydbergs Ry 4.58742455679e+20
- Quads quad 9.47817120313e-16
Every row is Kilojoule (kJ) converted through the joule, in exact rational arithmetic.
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.