Convert 1 Gigajoule to Megajoule (1 GJ to MJ)
Looking to convert 1 gigajoule (GJ) to megajoule (MJ)? This page provides the accurate result and a detailed explanation of how the conversion is done. Use this information to understand the relationship between Gigajoule and Megajoule and how to calculate conversions manually or using online tools.

Looking to convert 1 gigajoule (GJ) to megajoule (MJ)? This page provides the accurate result and a detailed explanation of how the conversion is done. Use this information to understand the relationship between Gigajoule and Megajoule and how to calculate conversions manually or using online tools.
What is Gigajoule to Megajoule Conversion?
Gigajoule (GJ) and megajoule (MJ) are both units used to measure energy, but they serve different purposes depending on the scale of the measurement. If you ever need to convert gigajoule to megajoule, knowing the exact conversion formula is essential.
GJ to mj Conversion Formula:
One Gigajoule is equal to 1000 Megajoule.
Formula: 1 GJ = 1000 MJ
By using this conversion factor, you can easily convert any energy from gigajoule to megajoule with precision.
Convert 1 Gigajoule to Megajoule
To convert 1 gigajoule to megajoule, multiply the value by 1000 since:
1 gigajoule = 1000 megajoule
So:
1 × 1000 = 1000
Result: 1 gigajoule = 1000 megajoule
Reverse Conversion
Need the reverse result? You can also convert megajoule back to gigajoule by dividing 1000:
1000 megajoule ÷ 1000 = 1 gigajoule
For more, visit: Megajoule to Gigajoule
Explore Related Conversion Tool
This page focuses specifically on converting 1 Gigajoule to Megajoule. If you're looking to convert a different value, you can use our general conversion tool:
Frequently Asked Questions
What is 1 gigajoule in megajoule?
1 gigajoule is equal to 1000 megajoule.
How do I convert gigajoule to megajoule?
Multiply the value in gigajoule by 1000 to get the equivalent in megajoule.