Energy Converter

Most individuals only look at the sum on their power bill to see how much they have to pay that month. But only a few take time and check to see whether the meter reading matches the one on their meter. Unfortunately, if this describes you, you're missing vital information about your power usage: the number of kilowatt-hours you use each month.


A kilowatt-hour is a unit of electrical energy equal to one kilowatt (1,000 watts) of power delivered over one hour. Kilowatt-hours are a unit of measurement for electrical work performed over time and are frequently used by electric providers to calculate energy use.

Kilowatt-hours are sometimes shortened as kWh, while the technically accepted abbreviation is kWh. The abbreviation kW h is also used occasionally. One kilowatt-hour, for example, can be written as 1 kWh, 1 kWh, or 1 kW h.


The joule is the energy equivalent to one newton of force on an object at a distance of one meter.[2] One joule is the thermal energy wasted by one ampere of current through one ohm of resistance for one second.

One joule is also the amount of energy required to transfer one coulomb of electric charge via a potential difference of one volt. Furthermore, one joule is equivalent to one watt-second.

How Many Joules make up a Kilowatt-hour?

A kilowatt-hour contains 3,600,000 joules, which is why we use this figure in the calculation above.

1 kWh = 3,600,000 J

Energy units

We provide a total of 5 energy power units. Those are:

  • Watt-hour (Wh)
  • Milliwatt-hour (MWh)
  • Kilowatt-hour (kWh)
  • Megawatt-hour (MWh)
  • Gigawatt-hour (GWh)
  • Joule (J)
  • Kilojoule(kJ)

How to use the energy converter tool?

Enter the energy value into the field with the relevant unit to convert between energy units. The energy converter will compute the value in all remaining units, and the results are displayed on the screen in various other energy unit formats.