Convert Kilojoule to Kilowatt-hour Online

About Kilojoule to Kilowatt-hour Conversion

This converter converts Kilojoule (kJ) to Kilowatt-hour (kWh). One Kilojoule (kJ) equals 0.0002777777777777778 Kilowatt-hour (kWh).

Formula:

1 Kilojoule (kJ) = 0.0002777777777777778 Kilowatt-hour (kWh)

Example:

1 kJ = 0.0002777777777777778 kWh
2 kJ = 0.0005555555555555556 kWh

Kilojoule (kJ) to Kilowatt-hour (kWh) Conversion

A clear guide to converting Kilojoule into Kilowatt-hour. Includes numeric examples, formulas, and a breakdown of where this conversion appears in science, engineering, and daily applications.

Conversion Formula

Kilowatt-hour = Kilojoule × 0.000278

To convert Kilojoule (kJ) to Kilowatt-hour (kWh), multiply the value by 0.000278. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 kJ to kWh.

  • Step 1: Write the formula: kWh = kJ × 0.000278
  • Step 2: Substitute: 1 × 0.000278
  • Step 3: Result: 0.000278 kWh
So, 1 kJ = 0.000278 kWh.

About the Units

Kilojoule (kJ)

One Kilojoule (kJ) equals 0.000278 Kilowatt-hour (kWh)

A widely used unit across scientific, engineering, and measurement contexts.

Kilowatt-hour (kWh)

One Kilowatt-hour (kWh) equals 3600 Kilojoule (kJ)

Used for extremely large distances such as astronomical or planetary scales.

Where This Conversion Is Used

  • Converting values from Kilojoule to Kilowatt-hour for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent Kilowatt-hour representation.
  • Applied when comparing different measurement systems across tools and documents.
  • Essential in astronomy, orbital mechanics, and large-scale simulations.

Frequently Asked Questions

How many Kilowatt-hour (kWh) are in 1 Kilojoule (kJ)?

1 kJ = 0.000278 kWh.

What is the formula for converting Kilojoule (kJ) to Kilowatt-hour (kWh)?

Multiply the kJ value by 0.000278.

Can I reverse the conversion?

Yes. 1 kWh = 3600 kJ.

Conclusion

By applying the conversion factor shown above, you can reliably convert Kilojoule (kJ) to Kilowatt-hour (kWh) for use in scientific analysis, engineering calculations, academic work, or daily measurements.

Quick Links for Unit Converters

Convert Kilojoule to Other Units

Kilojoule to Joule

1 kJ = 1000 J

1 Kilojoule (kJ) = 1000 Joules (J)

1 kJ equals 1000 Js.

Kilojoule to Megajoule

1 kJ = 0.001 MJ

1 Kilojoule (kJ) = 0.001 Megajoule (MJ)

1 kJ equals 0.001 MJ.

Kilojoule to Gigajoule

1 kJ = 0.000001 GJ

1 Kilojoule (kJ) = 0.000001 Gigajoule (GJ)

1 kJ equals 0.000001 GJ.

Kilojoule to Watt-hour

1 kJ = 0.2777777777777778 Wh

1 Kilojoule (kJ) = 0.2777777777777778 Watt-hour (Wh)

1 kJ equals 0.2777777777777778 Wh.

Kilojoule to Kilowatt-hour

1 kJ = 0.0002777777777777778 kWh

1 Kilojoule (kJ) = 0.0002777777777777778 Kilowatt-hour (kWh)

1 kJ equals 0.0002777777777777778 kWh.

Kilojoule to Megawatt-hour

1 kJ = 2.7777777777777776e-7 MWh

1 Kilojoule (kJ) = 2.7777777777777776e-7 Megawatt-hour (MWh)

1 kJ equals 2.7777777777777776e-7 MWh.

Kilojoule to Erg

1 kJ = 10000000000 erg

1 Kilojoule (kJ) = 10000000000 Ergs

1 kJ equals 10000000000 ergs.

Kilojoule to Calorie

1 kJ = 239.0057361376673 cal

1 Kilojoule (kJ) = 239.0057361376673 Calories (cal)

1 kJ equals 239.0057361376673 cals.

Kilojoule to Kilocalorie

1 kJ = 0.2390057361376673 kcal

1 Kilojoule (kJ) = 0.2390057361376673 Kilocalorie (kcal)

1 kJ equals 0.2390057361376673 kcal.

Kilojoule to British Thermal Unit

1 kJ = 0.9478133944988911 BTU

1 Kilojoule (kJ) = 0.9478133944988911 British Thermal Unit (BTU)

1 kJ equals 0.9478133944988911 BTU.

Kilojoule to Foot-pound force

1 kJ = 737.5621494575464 ft_lbf

1 Kilojoule (kJ) = 737.5621494575464 Foot-pound forces (ft⋅lbf)

1 kJ equals 737.5621494575464 ft_lbves.

Kilojoule to Horsepower-hour

1 kJ = 0.00037250648813175706 hp_h

1 Kilojoule (kJ) = 0.00037250648813175706 Horsepower-hour (hp⋅h)

1 kJ equals 0.00037250648813175706 hp_h.

Kilojoule to Therm

1 kJ = 0.000009478133944988911 therm_us

1 Kilojoule (kJ) = 0.000009478133944988911 Therm (US)

1 kJ equals 0.000009478133944988911 therm_us.

Kilojoule to Electronvolt

1 kJ = 6.241509074460763e+21 eV

1 Kilojoule (kJ) = 6.241509074460763e+21 Electronvolts (eV)

1 kJ equals 6.241509074460763e+21 eVs.

Kilojoule to Kiloelectronvolt

1 kJ = 6241509074460763000 keV

1 Kilojoule (kJ) = 6241509074460763000 Kiloelectronvolts (keV)

1 kJ equals 6241509074460763000 keVs.

Kilojoule to Megaelectronvolt

1 kJ = 6241509074460762 MeV

1 Kilojoule (kJ) = 6241509074460762 Megaelectronvolts (MeV)

1 kJ equals 6241509074460762 MeVs.

Kilojoule to Gigaelectronvolt

1 kJ = 6241509074460.763 GeV

1 Kilojoule (kJ) = 6241509074460.763 Gigaelectronvolts (GeV)

1 kJ equals 6241509074460.763 GeVs.

Kilojoule to Tonne of Oil Equivalent

1 kJ = 2.3884589662749594e-8 toe

1 Kilojoule (kJ) = 2.3884589662749594e-8 Tonne of Oil Equivalent (toe)

1 kJ equals 2.3884589662749594e-8 toe.

Kilojoule to Tonne of Coal Equivalent

1 kJ = 3.4120842375356563e-8 tce

1 Kilojoule (kJ) = 3.4120842375356563e-8 Tonne of Coal Equivalent (tce)

1 kJ equals 3.4120842375356563e-8 tce.

Kilojoule to Hartree

1 kJ = 229371227839632500000 hartree

1 Kilojoule (kJ) = 229371227839632500000 Hartrees

1 kJ equals 229371227839632500000 hartrees.

Convert Kilowatt-hour to Other Units

Kilowatt-hour to Joule

1 kWh = 3600000 J

1 Kilowatt-hour (kWh) = 3600000 Joules (J)

1 kWh equals 3600000 Js.

Kilowatt-hour to Kilojoule

1 kWh = 3600 kJ

1 Kilowatt-hour (kWh) = 3600 Kilojoules (kJ)

1 kWh equals 3600 kJs.

Kilowatt-hour to Megajoule

1 kWh = 3.6 MJ

1 Kilowatt-hour (kWh) = 3.6 Megajoules (MJ)

1 kWh equals 3.6 MJs.

Kilowatt-hour to Gigajoule

1 kWh = 0.0036 GJ

1 Kilowatt-hour (kWh) = 0.0036 Gigajoule (GJ)

1 kWh equals 0.0036 GJ.

Kilowatt-hour to Watt-hour

1 kWh = 1000 Wh

1 Kilowatt-hour (kWh) = 1000 Watt-hours (Wh)

1 kWh equals 1000 Whs.

Kilowatt-hour to Megawatt-hour

1 kWh = 0.001 MWh

1 Kilowatt-hour (kWh) = 0.001 Megawatt-hour (MWh)

1 kWh equals 0.001 MWh.

Kilowatt-hour to Erg

1 kWh = 36000000000000 erg

1 Kilowatt-hour (kWh) = 36000000000000 Ergs

1 kWh equals 36000000000000 ergs.

Kilowatt-hour to Calorie

1 kWh = 860420.6500956023 cal

1 Kilowatt-hour (kWh) = 860420.6500956023 Calories (cal)

1 kWh equals 860420.6500956023 cals.

Kilowatt-hour to Kilocalorie

1 kWh = 860.4206500956022 kcal

1 Kilowatt-hour (kWh) = 860.4206500956022 Kilocalories (kcal)

1 kWh equals 860.4206500956022 kcals.

Kilowatt-hour to British Thermal Unit

1 kWh = 3412.128220196008 BTU

1 Kilowatt-hour (kWh) = 3412.128220196008 British Thermal Units (BTU)

1 kWh equals 3412.128220196008 BTUs.

Kilowatt-hour to Foot-pound force

1 kWh = 2655223.738047167 ft_lbf

1 Kilowatt-hour (kWh) = 2655223.738047167 Foot-pound forces (ft⋅lbf)

1 kWh equals 2655223.738047167 ft_lbves.

Kilowatt-hour to Horsepower-hour

1 kWh = 1.3410233572743253 hp_h

1 Kilowatt-hour (kWh) = 1.3410233572743253 Horsepower-hours (hp⋅h)

1 kWh equals 1.3410233572743253 hp_hs.

Kilowatt-hour to Therm

1 kWh = 0.034121282201960076 therm_us

1 Kilowatt-hour (kWh) = 0.034121282201960076 Therm (US)

1 kWh equals 0.034121282201960076 therm_us.

Kilowatt-hour to Electronvolt

1 kWh = 2.2469432668058746e+25 eV

1 Kilowatt-hour (kWh) = 2.2469432668058746e+25 Electronvolts (eV)

1 kWh equals 2.2469432668058746e+25 eVs.

Kilowatt-hour to Kiloelectronvolt

1 kWh = 2.2469432668058747e+22 keV

1 Kilowatt-hour (kWh) = 2.2469432668058747e+22 Kiloelectronvolts (keV)

1 kWh equals 2.2469432668058747e+22 keVs.

Kilowatt-hour to Megaelectronvolt

1 kWh = 22469432668058743000 MeV

1 Kilowatt-hour (kWh) = 22469432668058743000 Megaelectronvolts (MeV)

1 kWh equals 22469432668058743000 MeVs.

Kilowatt-hour to Gigaelectronvolt

1 kWh = 22469432668058744 GeV

1 Kilowatt-hour (kWh) = 22469432668058744 Gigaelectronvolts (GeV)

1 kWh equals 22469432668058744 GeVs.

Kilowatt-hour to Tonne of Oil Equivalent

1 kWh = 0.00008598452278589854 toe

1 Kilowatt-hour (kWh) = 0.00008598452278589854 Tonne of Oil Equivalent (toe)

1 kWh equals 0.00008598452278589854 toe.

Kilowatt-hour to Tonne of Coal Equivalent

1 kWh = 0.00012283503255128362 tce

1 Kilowatt-hour (kWh) = 0.00012283503255128362 Tonne of Coal Equivalent (tce)

1 kWh equals 0.00012283503255128362 tce.

Kilowatt-hour to Hartree

1 kWh = 8.25736420222677e+23 hartree

1 Kilowatt-hour (kWh) = 8.25736420222677e+23 Hartrees

1 kWh equals 8.25736420222677e+23 hartrees.