Gigajoules to Kilojoules Converter

Enter the energy in gigajoules below to convert it to kilojoules.

Result in Kilojoules:

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1 GJ = 1,000,000 kJ
Learn how we calculated this below

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Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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How to Convert Gigajoules to Kilojoules

To convert a measurement in gigajoules to a measurement in kilojoules, multiply the energy by the following conversion ratio: 1,000,000 kilojoules/gigajoule.

Since one gigajoule is equal to 1,000,000 kilojoules, you can use this simple formula to convert:

kilojoules = gigajoules × 1,000,000

The energy in kilojoules is equal to the energy in gigajoules multiplied by 1,000,000.

For example, here's how to convert 5 gigajoules to kilojoules using the formula above.
kilojoules = (5 GJ × 1,000,000) = 5,000,000 kJ

How Many Kilojoules Are in a Gigajoule?

There are 1,000,000 kilojoules in a gigajoule, which is why we use this value in the formula above.

1 GJ = 1,000,000 kJ

Gigajoules and kilojoules are both units used to measure energy. Keep reading to learn more about each unit of measure.

What Is a Gigajoule?

One gigajoule is equal to 1,000,000,000 joules, which is the energy equal to the force on an object of one newton at a distance of one meter.

The gigajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "giga" is the prefix for billions, or 109. Gigajoules can be abbreviated as GJ; for example, 1 gigajoule can be written as 1 GJ.

Learn more about gigajoules.

What Is a Kilojoule?

One kilojoule is equal to 1,000 joules, which is the energy equal to the force on an object of one newton at a distance of one meter.

The kilojoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "kilo" is the prefix for thousands, or 103. Kilojoules can be abbreviated as kJ; for example, 1 kilojoule can be written as 1 kJ.

Learn more about kilojoules.

Gigajoule to Kilojoule Conversion Table

Table showing various gigajoule measurements converted to kilojoules.
Gigajoules Kilojoules
0.000001 GJ 1 kJ
0.000002 GJ 2 kJ
0.000003 GJ 3 kJ
0.000004 GJ 4 kJ
0.000005 GJ 5 kJ
0.000006 GJ 6 kJ
0.000007 GJ 7 kJ
0.000008 GJ 8 kJ
0.000009 GJ 9 kJ
0.0000001 GJ 0.1 kJ
0.000001 GJ 1 kJ
0.00001 GJ 10 kJ
0.0001 GJ 100 kJ
0.001 GJ 1,000 kJ
0.01 GJ 10,000 kJ
0.1 GJ 100,000 kJ
1 GJ 1,000,000 kJ

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