Convert Kilojoule to Gigajoule
Input the number of kilojoules you want to convert to gigajoules.
How to Convert Kilojoules to Gigajoules
The kilojoule and gigajoule are both units of energy. By definition, 1 gigajoule equals exactly 1000000 kilojoules. This means to convert kilojoules to gigajoules, you divide by 1000000.
Formula
Step-by-Step Example
Convert 5 kJ to gigajoules:
We need to convert kilojoules to gigajoules
Since 1 GJ = 1000000 kJ, divide by 1000000
5 ÷ 1000000 = 5e-6
5 kJ = 5e-6 GJ
Kilojoule to Gigajoule Conversion Table
Quick reference table for common kilojoule to gigajoule conversions. Click any value for detailed calculation.
| Kilojoules (kJ) | Gigajoules (GJ) |
|---|---|
| 0.1 kJ | 1e-7 GJ |
| 0.5 kJ | 5e-7 GJ |
| 1 kJ | 1e-6 GJ |
| 2 kJ | 2e-6 GJ |
| 5 kJ | 5e-6 GJ |
| 10 kJ | 1e-5 GJ |
| 25 kJ | 2.5e-5 GJ |
| 50 kJ | 5e-5 GJ |
| 100 kJ | 0.0001 GJ |
About These Units
Kilojoule (kJ)
A kilojoule (kJ) equals 1,000 joules or approximately 239 calories. Kilojoules measure food energy on nutrition labels in Australia, Europe, and many countries. An average adult needs 8,400-10,000 kJ daily. One kJ equals approximately 0.239 kcal.
Gigajoule (GJ)
A gigajoule (GJ) equals 1 billion joules or approximately 277.8 kilowatt-hours. Gigajoules measure natural gas billing, industrial energy use, and building energy consumption. One GJ equals about 26.8 cubic meters of natural gas.
Frequently Asked Questions
How do I convert kilojoules to gigajoules?
To convert kilojoules to gigajoules, divide the value by 1000000. For example, 10 kJ = 1e-5 GJ.
How many gigajoules are in 1 kilojoule?
1 kilojoule equals 1e-6 gigajoules.
What is the formula for kilojoules to gigajoules?
The formula is: GJ = kJ ÷ 1000000.