Megajoules To Kilowatt Hours Conversion


1 MJ = 0.27777777777778 kWh

Want to convert from kilowatt hours to megajoules instead?

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

The formula for converting megajoules to kilowatt hours is: kWh = MJ × 0.27777777777778. To calculate the megajoule value in kilowatt hours first substitute the megajoule value into the preceding formula, and then perform 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

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

Example Conversion

Let's take a look at an example. The step-by-step process to convert 9 megajoules to kilowatt hours is:

  1. Understand the conversion formula: kWh = MJ × 0.27777777777778
  2. Substitute the required value. In this case we substitute 9 for MJ so the formula becomes: kWh = 9 × 0.27777777777778
  3. Calculate the result using the provided values. In our example the result is: 9 × 0.27777777777778 = 2.50000000000002 kWh

In summary, 9 megajoules is equal to 2.50000000000002 kilowatt hours.

Converting kilowatt hours to megajoules

In order to convert the other way around i.e. kilowatt hours to megajoules, you would use the following formula: MJ = kWh × 3.6. To convert kilowatt hours to megajoules first substitute the kilowatt hour value into the above formula, and then execute 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

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

Conversion Unit Definitions

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.

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.

Megajoules To Kilowatt Hours Conversion Table

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

Megajoule (MJ)Kilowatt Hour (kWh)
1 MJ0.27777777777778 kWh
2 MJ0.55555555555556 kWh
3 MJ0.83333333333334 kWh
4 MJ1.11111111111112 kWh
5 MJ1.3888888888889 kWh
6 MJ1.66666666666668 kWh
7 MJ1.94444444444446 kWh
8 MJ2.22222222222224 kWh
9 MJ2.50000000000002 kWh
10 MJ2.7777777777778 kWh
11 MJ3.05555555555558 kWh
12 MJ3.33333333333336 kWh
13 MJ3.61111111111114 kWh

Other Common Megajoule Conversions

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

1 megajoule in joules1000000 J
1 megajoule in kilojoules1000 kJ
1 megajoule in gigajoules0.001 GJ
1 megajoule in calories238845.8966275 cal
1 megajoule in kilocalories238.8458966275 kcal
1 megajoule in watt hours277.77777777778 Wh
1 megajoule in megawatt hours0.00027777777777778 MWh
1 megajoule in btus947.08628903179 Btu
1 megajoule in quads0.00000000000094708628903179 Q