What Is This Tool?
This tool converts electric horsepower, a measure of electrical motor power defined as exactly 746 watts, into joule per second (J/s), the SI derived unit of power equal to one watt. It helps standardize power ratings for electrical and mechanical equipment.
How to Use This Tool?
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Enter a value in electric horsepower you wish to convert.
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Select horsepower (electric) as the input unit and joule per second [J/s] as the output unit.
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Click the convert button to get the equivalent power expressed in joule per second.
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Use the results for comparison or specification of electric motor power or related equipment.
Key Features
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Converts electric horsepower to joule per second using the exact defined rate.
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Supports applications in electrical engineering and industrial motor specification.
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Browser-based and easy to use without software installation.
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Facilitates consistent comparison of power units in SI standard.
Examples
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2 horsepower (electric) equals 1492 joule/second [J/s].
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0.5 horsepower (electric) equals 373 joule/second [J/s].
Common Use Cases
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Determining motor output power from nameplates on pumps, fans, and compressors.
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Sizing controllers and electrical supply for industrial motors.
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Converting power units between SI watts and electric horsepower for engineering documents.
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Specifying mechanical power in HVAC design and energy management.
Tips & Best Practices
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Always verify the unit definitions to ensure conversions fit your context, as different horsepower types exist.
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Use the converter for consistent unit standardization when preparing technical specifications.
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Consider instrument precision and rounding when applying conversion results in practical projects.
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Cross-check results against motor documentation for accuracy in industrial settings.
Limitations
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Conversion strictly applies to electric horsepower defined as exactly 746 watts.
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Other horsepower definitions like mechanical or metric require different factors not covered here.
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Measurement accuracy and rounding may affect precision in practical applications.
Frequently Asked Questions
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What is electric horsepower?
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Electric horsepower is a unit of power used for rating electric motors, defined precisely as 746 watts.
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How does joule per second relate to watts?
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One joule per second (J/s) is exactly equal to one watt, making it the standard SI unit of power.
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Can I use this conversion for mechanical horsepower?
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No, this conversion only applies to electric horsepower; mechanical or metric horsepower use different conversion factors.
Key Terminology
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Electric horsepower
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A power unit used for electric motors, defined exactly as 746 watts.
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Joule per second [J/s]
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SI derived unit of power that measures the rate of energy transfer, equal to one watt.
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Conversion rate
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The exact value used to convert between electric horsepower and joule per second: 1 horsepower (electric) = 746 J/s.