What is horsepower [hp, hp (UK)]?

Horsepower is a non-SI unit of power representing the rate of doing work, commonly defined as 550 foot-pounds per second or about 745.7 watts in its common mechanical form.

What does gigajoule/second measure?

Gigajoule/second is an SI unit of power measuring energy converted or delivered at a rate of one billion joules per second, equivalent to one gigawatt.

Why convert horsepower to gigajoule/second?

Converting to gigajoule/second helps compare traditional horsepower ratings with large-scale power values in scientific and engineering contexts using SI units.

How to Convert from Horsepower [hp, hp (UK)] to Gigajoule/second [GJ/s]

Learn how to convert power measurements from horsepower (hp, hp UK) to gigajoule per second (GJ/s) with this easy-to-use online unit converter. Understand the applications, features, and process behind this conversion.

Horsepower [hp, hp (UK)]

Gigajoule/second [GJ/s]

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Horsepower [hp, hp (UK)] to Gigajoule/second [GJ/s] Conversion Table

Horsepower [hp, hp (UK)]	Gigajoule/second [GJ/s]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Horsepower [hp, hp (UK)] to Gigajoule/second [GJ/s] Conversion Table
Horsepower [hp, hp (UK)]	Gigajoule/second [GJ/s]

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What Is This Tool?

This converter enables the transformation of power values from horsepower, a traditional mechanical unit, into gigajoule per second, an SI unit for very large power measurements. It is designed for users needing to translate automotive or industrial horsepower figures into scientific-scale energy rates.

How to Use This Tool?

Enter the power value you wish to convert from horsepower.
Select the input unit as horsepower [hp, hp (UK)].
Choose gigajoule/second [GJ/s] as the output unit.
Click the convert button to obtain the equivalent power value in GJ/s.
Review examples or adjust input values as needed for further conversions.

Key Features

Converts horsepower [hp, hp (UK)] to gigajoule/second [GJ/s] accurately.
Includes standard mechanical/imperial horsepower definitions for reliable results.
Ideal for large-scale power unit conversions in engineering and energy contexts.
User-friendly interface suitable for automotive, industrial, and scientific applications.
Provides practical examples for quick understanding of conversion results.

Examples

Convert 100 horsepower to gigajoule/second: result is approximately 7.4569987e-5 GJ/s.
Convert 5000 horsepower to gigajoule/second: result is approximately 0.0037285 GJ/s.

Common Use Cases

Assessing engine output power ratings in automotive and motorcycle specifications.
Determining power specifications for electric motors, pumps, and small engines.
Analyzing large mechanical or propulsive power for marine engines and industrial machinery.
Quantifying power output of large-scale power plants and grid generation in scientific units.
Describing continuous thermal power in industrial or waste-to-energy facilities.

Tips & Best Practices

Confirm the horsepower variant used matches the standard mechanical/imperial type for accuracy.
Use this tool when dealing with very large power values to ensure meaningful gigajoule/second results.
Cross-check converted values when precision is critical due to small fractional outputs.
Consider context when interpreting converted results, especially in scientific or industrial settings.

Limitations

Different horsepower definitions exist; this tool is based on common mechanical/imperial horsepower only.
Converted GJ/s values for typical horsepower values are very small and may require careful interpretation.
Gigajoule/second units are better suited for very large power scales and may not be practical for smaller applications.

Frequently Asked Questions

What is horsepower [hp, hp (UK)]?: Horsepower is a non-SI unit of power representing the rate of doing work, commonly defined as 550 foot-pounds per second or about 745.7 watts in its common mechanical form.
What does gigajoule/second measure?: Gigajoule/second is an SI unit of power measuring energy converted or delivered at a rate of one billion joules per second, equivalent to one gigawatt.
Why convert horsepower to gigajoule/second?: Converting to gigajoule/second helps compare traditional horsepower ratings with large-scale power values in scientific and engineering contexts using SI units.

Key Terminology

Horsepower [hp, hp (UK)]: A traditional mechanical power unit defined as 550 foot-pounds per second, approximately equal to 745.7 watts, used for rating engines and machinery.
Gigajoule/second [GJ/s]: An SI power unit representing energy transfer of one billion joules per second, equal to one gigawatt, applied in large-scale power measurements.

Quick Knowledge Check

What type of power unit is horsepower [hp, hp (UK)] classified as?

An SI base unit

A non-SI mechanical power unit

A unit measuring energy

What is the equivalent SI power unit for gigajoule/second [GJ/s]?

One megawatt

One gigawatt

One kilowatt

Why might small horsepower values result in very small gigajoule/second values?

Because GJ/s measures very large power scales

Because horsepower is larger than GJ/s units

Because GJ/s measures time instead of power

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