GJ → kJ converter

Convert gigajoule to kilojoules (Energy)

1 GJ = 1000000 kJ · 1 kJ = 0.000001 GJ

Common values: 10 GJ 50 GJ 100 GJ 500 GJ 1000 GJ

100 GJ = 100000000 kJ

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Gigajoule to kilojoules Conversion

1 gigajoule (GJ) is equal to 1000000 kilojoules (kJ).

1 GJ = 1000000 kJ

or

1 kJ = 0.000001 GJ

Formula

To convert a energy from gigajoule (GJ) to kilojoules (kJ), multiply the energy in gigajoule by 1000000

e(kJ) = e(GJ) × 1000000

Examples:

Convert 100 gigajoule to kilojoules:

e(kJ) = 100GJ × 1000000 = 100000000 kJ

Conversion table

Gigajoule (GJ) Kilojoules (kJ)
1 GJ 1000000 kJ
2 GJ 2000000 kJ
3 GJ 3000000 kJ
5 GJ 5000000 kJ
10 GJ 10000000 kJ
20 GJ 20000000 kJ
25 GJ 25000000 kJ
50 GJ 50000000 kJ
100 GJ 100000000 kJ
250 GJ 250000000 kJ
500 GJ 500000000 kJ
1000 GJ 1e9 kJ
Kilojoules (kJ) Gigajoule (GJ)
1 kJ 1e-6 GJ
2 kJ 2e-6 GJ
3 kJ 3e-6 GJ
5 kJ 5e-6 GJ
10 kJ 1e-5 GJ
20 kJ 2e-5 GJ
25 kJ 2.5e-5 GJ
50 kJ 5e-5 GJ
100 kJ 1.0e-4 GJ
250 kJ 2.5e-4 GJ
500 kJ 5.0e-4 GJ
1000 kJ 0.001 GJ

Frequently asked questions

How do I convert gigajoule to kilojoules?

Multiply the value in gigajoule by 1000000 to get the result in kilojoules. For example, 5 GJ × 1000000 = 5000000 kJ.

How many kilojoules are in 1 gigajoule?

1 gigajoule (GJ) is equal to 1000000 kilojoules (kJ).

How do I convert kilojoules back to gigajoule?

Use the inverse operation: divide the value in kilojoules by 1000000 to get the result in gigajoule.

How accurate is the gigajoule to kilojoules conversion?

The converter multiplies by the conversion factor 1000000 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.

Sources

Conversion factors are based on internationally recognised standards:

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