Energy Converter

Convert between chemical, electrical and physical energy units.

Energy
6
Printable Chart
Related Conversions
1 GJ to kWh 2.5 GJ to kWh 3.5 GJ to kWh 5 GJ to kWh 15 GJ to kWh 30 GJ to kWh 100 GJ to kWh 500 GJ to kWh 5,000 GJ to kWh 10,000 GJ to kWh 50,000 GJ to kWh 100,000 GJ to kWh
Reverse Conversions
1 kWh to GJ 2.5 kWh to GJ 3 kWh to GJ 3.5 kWh to GJ 5 kWh to GJ 6 kWh to GJ 25 kWh to GJ 30 kWh to GJ 100 kWh to GJ 500 kWh to GJ 1,000 kWh to GJ 5,000 kWh to GJ
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

Trending Now

1 MHz to Hz Days Until Days Until Christmas 100 m to feet Days Until Halloween 1 oz to grams Temperature Chart 1 hectare to acres Days Until New Year Business Days Percentage Calculator

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

Cup of coffee 5 kJ
Match stick 1 kJ
Microwave 10 minutes 0.17 kWh
Laptop full charge 200 kJ
AA battery 10 kJ
Slice of bread 330 kJ

Formula

kWh = GJ × 277.7777777778

Example

Example: convert 1.5 gigajoules to kilowatt-hours.

1.5 GJ = 416.66666667 kWh

Conversion table

gigajoules (GJ) kilowatt-hours (kWh)
1 GJ 277.77777778 kWh
2 GJ 555.55555556 kWh
5 GJ 1388.88888889 kWh
10 GJ 2777.77777778 kWh
20 GJ 5555.55555556 kWh
50 GJ 13888.88888889 kWh
100 GJ 27777.77777778 kWh

Explanation

These are both units.

How to convert gigajoules to kilowatt-hours

  1. Start with the value in gigajoules (GJ).
  2. Multiply it by 277.7777777778.
  3. The result is the measurement in kilowatt-hours (kWh).

Example: 1.5 GJ → 416.66666667 kWh

Frequently Asked Questions

How much is 1.5 gigajoules in kilowatt-hours?

1.5 gigajoules is about 416.667 kilowatt-hours.

How many kilowatt-hours is 1 gigajoule?

1 gigajoule equals 277.77777778 kilowatt-hours.

How many gigajoules is 1 kilowatt-hour?

1 kilowatt-hour equals 0.0036 gigajoules.

What is the difference between gigajoules and kilowatt-hours?

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 gigajoules and kilowatt-hours 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 gigajoule equal 277.77777778 kilowatt-hours?

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