What is horsepower used for?

Horsepower is commonly used to rate power output for automotive engines, small electric motors, pumps, and certain industrial machinery.

Why convert horsepower to terawatts?

Converting horsepower to terawatts helps integrate small-scale mechanical power measurements into large-scale contexts like global energy production or astrophysical phenomena.

Are all horsepower units the same?

No, there are variants such as mechanical (common) and metric horsepower, each with slightly different power equivalencies.

How to Convert from Horsepower [hp, hp (UK)] to Terawatt [TW]?

Learn how to convert power measurements from horsepower (hp) — a common unit for engine and motor output — to terawatts (TW), an SI unit representing extremely large power scales such as national energy production or astrophysical outputs.

Horsepower [hp, hp (UK)]

Terawatt [TW]

Please check your input. It must be a valid numeric value.

Horsepower [hp, hp (UK)] to Terawatt [TW] Conversion Table

Horsepower [hp, hp (UK)]	Terawatt [TW]

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 Terawatt [TW] Conversion Table
Horsepower [hp, hp (UK)]	Terawatt [TW]

Explore More Power Units Converter

What Is This Tool?

This converter transforms power values measured in horsepower, a traditional mechanical unit often used for vehicles and engines, into terawatts, an SI unit suited for expressing very large energy transfer rates. It helps bridge engineering power ratings with global or astronomical energy scales.

How to Use This Tool?

Enter a power value in horsepower (hp) into the input field
Select horsepower as the original unit and terawatt as the target unit
Click convert to see the equivalent power expressed in terawatts
Use the result for comparing or integrating power data across different scales

Key Features

Converts from horsepower [hp, hp (UK)] to terawatt [TW]
Based on the mechanical horsepower standard (550 foot-pounds per second)
Expresses results in an SI unit representing powers on a planetary or astrophysical scale
Provides quick translation between small-scale mechanical power and large-scale power metrics

Examples

1 horsepower = 7.4569987158229e-10 terawatts
1000 horsepower = 7.4569987158229e-7 terawatts

Common Use Cases

Translating engine outputs into global or planetary power units
Comparing mechanical power ratings with large-scale electrical generation
Integrating marine engine or generator data for astrophysics power assessments

Tips & Best Practices

Verify the variant of horsepower used in your data for best consistency
Remember terawatts represent extremely large powers, so expect very small converted values from horsepower
Use this conversion to contextualize small-scale power into larger energy frameworks

Limitations

Conversion is based on common mechanical horsepower; variations in hp definitions affect accuracy
Terawatt units represent massive power levels, making converted values from horsepower very small and sometimes impractical for daily usage

Frequently Asked Questions

What is horsepower used for?: Horsepower is commonly used to rate power output for automotive engines, small electric motors, pumps, and certain industrial machinery.
Why convert horsepower to terawatts?: Converting horsepower to terawatts helps integrate small-scale mechanical power measurements into large-scale contexts like global energy production or astrophysical phenomena.
Are all horsepower units the same?: No, there are variants such as mechanical (common) and metric horsepower, each with slightly different power equivalencies.

Key Terminology

Horsepower (hp): A non-SI power unit representing the mechanical rate of work, often defined as 550 foot-pounds per second or about 745.7 watts.
Terawatt (TW): An SI unit of power equal to 10^12 watts, used for expressing extremely large energy transfer rates like national electricity generation.

Quick Knowledge Check

Which unit is horsepower commonly used to rate?

Large power plants

Engine and motor output

National electricity grids

What does a terawatt represent?

A small mechanical power

An extremely large power scale

Power in foot-pounds per second

What might affect the accuracy of converting horsepower to terawatts?

Different horsepower variants

Time of day

Weather conditions

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