What is horsepower (hp, hp UK)?

Horsepower is a traditional unit of power mainly used to express engine and machinery output, defined as 550 foot-pounds per second or approximately 745.7 watts for the mechanical variant.

What does terajoule per second (TJ/s) represent?

Terajoule per second is a large power unit equivalent to one trillion watts, used to express very high rates of energy transfer like the power output of large electricity grids.

When should I use this conversion?

Use this conversion when translating mechanical horsepower power ratings into very large scale energy flow units, such as for comparing engine power to national electricity grid capacities.

How to Convert Horsepower [hp, hp (UK)] to Terajoule/second [TJ/s]

Convert power units from horsepower (hp, hp UK) to terajoule per second (TJ/s) with ease. This tool helps translate engine and machinery power into large-scale energy flow terms used in national grids.

Horsepower [hp, hp (UK)]

Terajoule/second [TJ/s]

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Horsepower [hp, hp (UK)] to Terajoule/second [TJ/s] Conversion Table

Horsepower [hp, hp (UK)]	Terajoule/second [TJ/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 Terajoule/second [TJ/s] Conversion Table
Horsepower [hp, hp (UK)]	Terajoule/second [TJ/s]

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What Is This Tool?

This converter transforms power values measured in horsepower, a traditional mechanical unit commonly used for engines, into terajoule per second, a unit suited for representing massive energy transfer rates. It is ideal for bridging everyday power measurements with expansive energy system scales.

How to Use This Tool?

Enter the power value in horsepower (hp, hp UK) you want to convert
Select horsepower as the source unit and terajoule per second as the target unit
Click convert to get the equivalent power value expressed in terajoule per second

Key Features

Converts between mechanical/imperial horsepower and terajoule per second units
Suitable for both small engine power ratings and large-scale energy analysis
Browser-based and easy-to-use interface for quick conversions

Examples

10 horsepower converts to approximately 7.457 × 10⁻⁹ terajoule per second
500 horsepower converts to about 3.728 × 10⁻⁷ terajoule per second

Common Use Cases

Rating power output of automotive and motorcycle engines
Specifying power for small electric motors and pumps
Modeling combined electricity generation capacities of regional or national grids
Planning energy supply and demand at national or global levels

Tips & Best Practices

Ensure you know the specific horsepower variant applied to maintain conversion consistency
Use the terajoule per second unit primarily for very large power values due to its scale
Cross-check converted results when dealing with very small power values to avoid misinterpretation

Limitations

Horsepower values vary slightly by type which can affect conversion accuracy
Terajoule per second units represent extremely large power, making small horsepower conversions yield tiny numbers
Accurate conversion requires knowledge of the exact horsepower variant and consistent units

Frequently Asked Questions

What is horsepower (hp, hp UK)?: Horsepower is a traditional unit of power mainly used to express engine and machinery output, defined as 550 foot-pounds per second or approximately 745.7 watts for the mechanical variant.
What does terajoule per second (TJ/s) represent?: Terajoule per second is a large power unit equivalent to one trillion watts, used to express very high rates of energy transfer like the power output of large electricity grids.
When should I use this conversion?: Use this conversion when translating mechanical horsepower power ratings into very large scale energy flow units, such as for comparing engine power to national electricity grid capacities.

Key Terminology

Horsepower [hp, hp (UK)]: A traditional mechanical power unit defined as 550 foot-pounds per second, commonly used to rate engines and machinery.
Terajoule/second [TJ/s]: A large power unit representing one trillion watts, used to quantify very large-scale energy transfer such as national grid capacities.
Power: The rate at which work is done or energy is transferred over time.

Quick Knowledge Check

Which unit is larger in scale?

Horsepower

Terajoule per second

Watt

What is a common use for horsepower?

National grid modeling

Engine output rating

Global energy supply planning

Why might conversion results be very small numbers?

Because TJ/s is a very large unit

Horsepower is large

Because conversion formulas are inaccurate

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