Kilowatt Hours To Megajoules Conversion


1 kWh = 3.6 MJ

Want to convert from megajoules to kilowatt hours instead?

Disclaimer: We've spent hundreds of hours building and testing our calculators and conversion tools. However, we cannot be held liable for any damages or losses (monetary or otherwise) arising out of or in connection with their use. Full disclaimer.

How to convert kilowatt hours to megajoules (kWh to MJ)

The formula for converting kilowatt hours to megajoules is: MJ = kWh × 3.6. To calculate the kilowatt hour value in megajoules first substitute the kilowatt hour value into the preceding formula, and then perform the calculation. If we wanted to calculate 1 kilowatt hour in megajoules we follow these steps:

MJ = kWh × 3.6

MJ = 1 × 3.6

MJ = 3.6

In other words, 1 kilowatt hour is equal to 3.6 megajoules.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 6 kilowatt hours to megajoules is:

  1. Understand the conversion formula: MJ = kWh × 3.6
  2. Substitute the required value. In this case we substitute 6 for kWh so the formula becomes: MJ = 6 × 3.6
  3. Calculate the result using the provided values. In our example the result is: 6 × 3.6 = 21.6 MJ

In summary, 6 kilowatt hours is equal to 21.6 megajoules.

Converting megajoules to kilowatt hours

In order to convert the other way around i.e. megajoules to kilowatt hours, you would use the following formula: kWh = MJ × 0.27777777777778. To convert megajoules to kilowatt hours first substitute the megajoule value into the above formula, and then execute the calculation. If we wanted to calculate 1 megajoule in kilowatt hours we follow these steps:

kWh = MJ × 0.27777777777778

kWh = 1 × 0.27777777777778

kWh = 0.27777777777778

Or in other words, 1 megajoule is equal to 0.27777777777778 kilowatt hours.

Conversion Unit Definitions

What is a Kilowatt Hour?

A kilowatt-hour (kWh) is a unit of energy commonly used for measuring electricity consumption. It represents one kilowatt (kW) of power used continuously for one hour. In other words, it is a measure of energy equivalent to 1,000 watt-hours or 3.6 million joules.
Mathematically, 1 kilowatt-hour is equal to: 1 kWh = 1 kilowatt × 1 hour = 1,000 watts × 1 hour.
Kilowatt-hours are the standard billing units used by electric utilities for measuring the amount of energy consumed by residential, commercial, and industrial customers over time. For example, if you use a 1,000-watt (or 1 kilowatt) appliance for one hour, you will have consumed 1 kilowatt-hour of electricity. Utility bills often display the total energy consumption in kilowatt-hours, and consumers are charged based on the number of kilowatt-hours they use.

What is a Megajoule?

A megajoule (MJ) is a metric unit of energy in the International System of Units (SI). One megajoule is equal to 1,000,000 joules or 1×106 joules. The prefix "mega-" signifies a factor of one million, so a megajoule is a large unit of energy, often used in contexts where significant amounts of energy are involved.
Megajoules are commonly used in various scientific, engineering, and industrial applications to measure large quantities of energy. For instance, in the field of nutrition, the energy content of food is sometimes measured in megajoules per serving. In energy-related contexts, such as electricity generation or large-scale industrial processes, the energy output or consumption is often expressed in megajoules.

Kilowatt Hours To Megajoules Conversion Table

Below is a lookup table showing common kilowatt hours to megajoules conversion values.

Kilowatt Hour (kWh)Megajoule (MJ)
1 kWh3.6 MJ
2 kWh7.2 MJ
3 kWh10.8 MJ
4 kWh14.4 MJ
5 kWh18 MJ
6 kWh21.6 MJ
7 kWh25.2 MJ
8 kWh28.8 MJ
9 kWh32.4 MJ
10 kWh36 MJ
11 kWh39.6 MJ
12 kWh43.2 MJ
13 kWh46.8 MJ

Other Common Kilowatt Hour Conversions

Below is a table of common conversions from kilowatt hours to other energy units.

1 kilowatt hour in ergs36000000000000 erg
1 kilowatt hour in joules3600000 J
1 kilowatt hour in kilojoules3600 kJ
1 kilowatt hour in gigajoules0.0036 GJ
1 kilowatt hour in calories859845.22785899 cal
1 kilowatt hour in kilocalories859.84522785899 kcal
1 kilowatt hour in watt hours1000 Wh
1 kilowatt hour in megawatt hours0.001 MWh
1 kilowatt hour in watt seconds3600000 Ws
1 kilowatt hour in btus3414.4259497 Btu
1 kilowatt hour in therms0.034144259497 thm