Energy Converter

Convert between chemical, electrical and physical energy units.

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Related Conversions
1 kWh to GJ 5 kWh to GJ 10 kWh to GJ 100 kWh to GJ 500 kWh to GJ 1,000 kWh to GJ 2,500 kWh to GJ 5,000 kWh to GJ 100,000 kWh to GJ 160,000 kWh to GJ 180,000 kWh to GJ 240,000 kWh to GJ
Reverse Conversions
25 GJ to kWh 50 GJ to kWh 250 GJ to kWh 2,500 GJ to kWh 5,000 GJ to kWh 10,000 GJ to kWh 25,000 GJ to kWh 50,000 GJ to kWh 100,000 GJ to kWh 480,000 GJ to kWh 2,000,000 GJ to kWh 4,000,000 GJ to kWh
More Energy Conversions
100 J to cal 1 GJ to kWh 1 GJ to MJ 1 MJ to BTU 100 kJ to kcal 1 MJ to kWh 2 GJ to MJ 2 MJ to BTU 250 cal to J 1 kWh to cal

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Recent Tools

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

100 W bulb for 1 hour 0.1 kWh
Match stick 1 kJ
Cup of coffee 5 kJ
Slice of bread 330 kJ
1 kWh 3.6 MJ
Phone battery 40 kJ

Formula

GJ = kWh × 0.0036

Example

Example: convert 200000 kilowatt-hours to gigajoules.

200000 kWh = 720 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: 200000 kWh → 720 GJ

Frequently Asked Questions

How much is 200000 kilowatt-hours in gigajoules?

200000 kilowatt-hours equals 720 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.