Energy Converter

Convert between chemical, electrical and physical energy units.

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Related Conversions
1 kWh to GJ 4 kWh to GJ 5.5 kWh to GJ 7 kWh to GJ 10.8 kWh to GJ 18 kWh to GJ 25 kWh to GJ 45 kWh to GJ 250 kWh to GJ 500 kWh to GJ 2,500 kWh to GJ 10,000 kWh to GJ
Reverse Conversions
1 GJ to kWh 5.5 GJ to kWh 9 GJ to kWh 10 GJ to kWh 45 GJ to kWh 50 GJ to kWh 90 GJ to kWh 100 GJ to kWh 500 GJ to kWh 5,000 GJ to kWh 25,000 GJ to kWh 100,000 GJ to kWh
More Energy Conversions
100 J to cal 1 MJ to kWh 1 GJ to MJ 1 MJ to BTU 100 kJ to kcal 1 kWh to cal 2 GJ to MJ 2 MJ to BTU 250 cal to J 1 kWh to kJ

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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

Gasoline liter 34 MJ
AA battery 10 kJ
Laptop full charge 200 kJ
Microwave 10 minutes 0.17 kWh
1 kWh 3.6 MJ
Boil 1 liter water 334 kJ

Formula

GJ = kWh × 0.0036

Example

Example: convert 4.5 kilowatt-hours to gigajoules.

4.5 kWh = 0.0162 GJ

Conversion table

kilowatt-hours (kWh) gigajoules (GJ)
1 kWh 0.0036 GJ
2 kWh 0.0072 GJ
5 kWh 0.018 GJ
10 kWh 0.036 GJ
20 kWh 0.072 GJ
50 kWh 0.18 GJ
100 kWh 0.36 GJ

Explanation

These are both units.

How to convert kilowatt-hours to gigajoules

  1. Start with the value in kilowatt-hours (kWh).
  2. Multiply it by 0.0036.
  3. The result is the measurement in gigajoules (GJ).

Example: 4.5 kWh → 0.0162 GJ

Frequently Asked Questions

How much is 4.5 kilowatt-hours in gigajoules?

4.5 kilowatt-hours equals 0.0162 gigajoules.

How many gigajoules is 1 kilowatt-hour?

1 kilowatt-hour equals 0.0036 gigajoules.

How many kilowatt-hours is 1 gigajoule?

1 gigajoule equals 277.77777778 kilowatt-hours.

What is the difference between kilowatt-hours and gigajoules?

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 gigajoules 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 0.0036 gigajoules?

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