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Gigajoule to Kilojoule Converter

Convert Gigajoule to Kilojoule instantly — live results with exact conversion factors.

1000000 kJ

Answer

1 gigajoule = 1000000 kilojoules. To convert GJ to kJ, multiply by 1000000.

Quick Reference Table

Gigajoule (GJ) Kilojoule (kJ)
1 1000000
2 2000000
5 5000000
10 10000000
20 20000000
50 50000000
100 100000000
250 250000000
500 500000000
1000 1000000000

Formula

Convert Gigajoule (GJ) to Kilojoule (kJ) using the relationship: 

kJ = GJ × 1000000

How to Convert

  1. Take the value in gigajoules (GJ).
  2. Multiply it by 1000000 (the conversion factor from GJ to kJ).
  3. The result is the equivalent value in kilojoules (kJ).
  4. Example: 1 GJ = 1000000 kJ.

Reverse Conversion

Need it the other direction? Kilojoule to Gigajoule conversion.

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FAQ

▸ How many kilojoules are in 1 gigajoule?

1 Gigajoule equals 1000000 kilojoules. Multiply by 1000000 to convert GJ to kJ.

▸ What is the formula to convert gigajoule to kilojoule?

Multiply the value in gigajoules by 1000000 to get kilojoules. Formula: kJ = GJ × 1000000.

▸ How do I convert gigajoules to kilojoules easily?

Enter your value in the converter at the top of this page — the kilojoules result updates live as you type. You can also multiply by 1000000 directly.