What does millijoule per second measure?

Millijoule per second measures power as the rate of energy transfer, equal to 0.001 joules per second or one milliwatt, typically used for low-power systems.

What is the mechanical horsepower unit used here?

This tool uses the mechanical or imperial horsepower (hp, hp UK) defined as 550 foot-pounds per second, approximately equal to 745.7 watts.

Why are horsepower values so small when converted from millijoule per second?

Because horsepower is a much larger unit than millijoule per second, converting very low power results in tiny decimal numbers.

How to Convert from Millijoule/second [mJ/s] to Horsepower [hp, hp (UK)]?

Learn how to convert power measurements from millijoule per second (mJ/s) to horsepower (hp, hp (UK)). Understand the units, conversion formula, and practical applications of this unit-pair converter tool.

Millijoule/second [mJ/s]

Horsepower [hp, hp (UK)]

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

Millijoule/second [mJ/s] to Horsepower [hp, hp (UK)] Conversion Table

Millijoule/second [mJ/s]	Horsepower [hp, hp (UK)]

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.

Millijoule/second [mJ/s] to Horsepower [hp, hp (UK)] Conversion Table
Millijoule/second [mJ/s]	Horsepower [hp, hp (UK)]

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What Is This Tool?

This converter tool allows users to transform power values from millijoule per second (mJ/s) to horsepower (hp, hp (UK)). It helps translate tiny power outputs typical in electronics or laboratory settings into the more conventional unit of horsepower, common in automotive and mechanical contexts.

How to Use This Tool?

Enter the power value in millijoule per second (mJ/s) you want to convert.
Select millijoule per second as the input unit and horsepower (hp, hp UK) as the output unit.
Click the convert button to get the equivalent horsepower value.
Review the converted result, which represents the mechanical power in conventional horsepower units.

Key Features

Converts power values between millijoule per second and mechanical horsepower (hp, hp UK).
Uses a precise conversion rate based on well-defined unit relationships.
Supports power comparison across electronic, laboratory, and mechanical domains.
Suitable for very low power measurements and industrial horsepower standards.
Browser-based, easy-to-use interface accessible on multiple devices.

Examples

1000 millijoule/second equals 0.001341022 horsepower.
5000 millijoule/second equals 0.006705110 horsepower.

Common Use Cases

Specifying power consumption in low-power electronics like sensors and microcontrollers.
Measuring optical output of low-power LEDs and laboratory lasers.
Comparing engine output ratings in automotive and motorcycle specifications.
Rating electric motors, pumps, and small engines in product datasheets.
Evaluating mechanical machinery where horsepower is a conventional measurement.

Tips & Best Practices

Ensure you select the correct variant of horsepower for your application, as slight differences exist.
Use scientific notation when dealing with very small converted values for clarity.
Confirm the power values are within the tool’s intended range, especially for very low power measurements.
Leverage the tool for comparing microscale power data to conventional mechanical power units.

Limitations

Horsepower is significantly larger than millijoule/second, leading to very small decimal results.
Conversions may be impractical without scientific notation for extremely low power values.
The exact conversion depends on the horsepower variant chosen since different definitions exist.

Frequently Asked Questions

What does millijoule per second measure?: Millijoule per second measures power as the rate of energy transfer, equal to 0.001 joules per second or one milliwatt, typically used for low-power systems.
What is the mechanical horsepower unit used here?: This tool uses the mechanical or imperial horsepower (hp, hp UK) defined as 550 foot-pounds per second, approximately equal to 745.7 watts.
Why are horsepower values so small when converted from millijoule per second?: Because horsepower is a much larger unit than millijoule per second, converting very low power results in tiny decimal numbers.

Key Terminology

Millijoule/second (mJ/s): A power unit equal to 0.001 joules per second or one milliwatt, representing energy transfer rate in low-power systems.
Horsepower (hp, hp UK): A non-SI unit of power defined as 550 foot-pounds per second, approximately 745.7 watts, used for mechanical power expression.
Conversion Rate: The factor used to translate power values between millijoule per second and horsepower, specifically 1 mJ/s = 0.000001341022089595 hp.

Quick Knowledge Check

What type of unit is millijoule per second?

A unit of power

A unit of length

A unit of speed

Horsepower (hp UK) is approximately equal to how many watts?

735.5 watts

745.7 watts

550 watts

Why might horsepower conversions from millijoule per second result in very small numbers?

Horsepower is a larger unit

Millijoule per second is larger

The units are identical in size

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