Energy Converter

Convert between chemical, electrical and physical energy units.

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Related Conversions
25 kWh to MJ 50 kWh to MJ 100 kWh to MJ 5,000 kWh to MJ 10,000 kWh to MJ 50,000 kWh to MJ 100,000 kWh to MJ 216,000 kWh to MJ 360,000 kWh to MJ 432,000 kWh to MJ 720,000 kWh to MJ 3,600,000 kWh to MJ
Reverse Conversions
1 MJ to kWh 5 MJ to kWh 250 MJ to kWh 500 MJ to kWh 1,000 MJ to kWh 5,000 MJ to kWh 50,000 MJ to kWh 144,000 MJ to kWh 162,000 MJ to kWh 198,000 MJ to kWh 288,000 MJ to kWh 1,800,000 MJ to kWh
More Energy Conversions
1 MJ to BTU 100 J to cal 1 GJ to kWh 1 GJ to MJ 2 MJ to BTU 100 kJ to kcal 1 kWh to cal 2 GJ to MJ 10 BTU to J 250 cal to J

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Popular Conversions

Kilowatt-Hours to Megajoules Megajoules to Kilowatt-Hours Joules to Calories Kilocalories to Kilojoules British Thermal Units to Joules Watt-Hours to Joules

Common Benchmarks

AA battery 10 kJ
Phone battery 40 kJ
Gasoline liter 34 MJ
Microwave 10 minutes 0.17 kWh
Laptop full charge 200 kJ
Slice of bread 330 kJ

Formula

MJ = kWh × 3.6

Example

Example: convert 180000 kilowatt-hours to megajoules.

180000 kWh = 648000 MJ

Conversion table

kilowatt-hours (kWh) megajoules (MJ)
1 kWh 3.6 MJ
2 kWh 7.2 MJ
5 kWh 18 MJ
10 kWh 36 MJ
20 kWh 72 MJ
50 kWh 180 MJ
100 kWh 360 MJ

Explanation

These are both units.

How to convert kilowatt-hours to megajoules

  1. Start with the value in kilowatt-hours (kWh).
  2. Multiply it by 3.6.
  3. The result is the measurement in megajoules (MJ).

Example: 180000 kWh → 648000 MJ

Frequently Asked Questions

How much is 180000 kilowatt-hours in megajoules?

180000 kilowatt-hours equals 648000 megajoules.

How many megajoules is 1 kilowatt-hour?

1 kilowatt-hour equals 3.6 megajoules.

How many kilowatt-hours is 1 megajoule?

1 megajoule equals 0.277777777778 kilowatt-hours.

What is the difference between kilowatt-hours and megajoules?

Both measure energy in SI. The main difference is usually scale: some units are convenient for smaller values, while others are used to express larger values more practically.

Where are kilowatt-hours and megajoules used?

They are used in physics and engineering to measure work, energy, and heat; the most practical unit depends on the magnitude.

Why does 1 kilowatt-hour equal 3.6 megajoules?

Because the units are defined with a fixed relationship. To convert kilowatt-hours to megajoules, multiply by that factor.