Convert 1 Gigajoule to Horsepower-hour (1 GJ to hp⋅h)
Looking to convert 1 gigajoule (GJ) to horsepower-hour (hp⋅h)? 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 Horsepower-hour and how to calculate conversions manually or using online tools.

Looking to convert 1 gigajoule (GJ) to horsepower-hour (hp⋅h)? 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 Horsepower-hour and how to calculate conversions manually or using online tools.
What is Gigajoule to Horsepower-hour Conversion?
Gigajoule (GJ) and horsepower-hour (hp⋅h) 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 horsepower-hour, knowing the exact conversion formula is essential.
GJ to hp⋅h Conversion Formula:
One Gigajoule is equal to 372.458255891 Horsepower-hour.
Formula: 1 GJ = 372.458255891 hp⋅h
By using this conversion factor, you can easily convert any energy from gigajoule to horsepower-hour with precision.
Convert 1 Gigajoule to Horsepower-hour
To convert 1 gigajoule to horsepower-hour, multiply the value by 372.458255891 since:
1 gigajoule = 372.458255891 horsepower-hour
So:
1 × 372.458255891 = 372.458255891
Result: 1 gigajoule = 372.458255891 horsepower-hour
Reverse Conversion
Need the reverse result? You can also convert horsepower-hour back to gigajoule by dividing 372.458255891:
372.458255891 horsepower-hour ÷ 372.458255891 = 1 gigajoule
For more, visit: Horsepower-hour to Gigajoule
Explore Related Conversion Tool
This page focuses specifically on converting 1 Gigajoule to Horsepower-hour. If you're looking to convert a different value, you can use our general conversion tool:
Frequently Asked Questions
What is 1 gigajoule in horsepower-hour?
1 gigajoule is equal to 372.458255891 horsepower-hour.
How do I convert gigajoule to horsepower-hour?
Multiply the value in gigajoule by 372.458255891 to get the equivalent in horsepower-hour.