What Is This Tool?
This converter allows users to transform power measurements between horsepower (550 ft*lbf/s), an imperial unit, and pferdestarke (ps), a metric horsepower unit used mainly in German-speaking countries. It helps compare and present engine power ratings accurately across these units.
How to Use This Tool?
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Enter the power value in horsepower (550 ft*lbf/s) that you want to convert.
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Select pferdestarke (ps) as the target unit.
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Initiate the conversion to see the equivalent power in pferdestarke.
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Use the result to compare or present power ratings in the desired unit.
Key Features
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Converts mechanical power from imperial horsepower to metric pferdestarke (ps).
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Browser-based tool requiring no installation.
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Supports power rating comparisons in automotive and machinery contexts.
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Provides clear and straightforward conversion using the exact defined rate.
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Ideal for users handling regional or historical power units.
Examples
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5 horsepower (550 ft*lbf/s) converts to 5.069348328 pferdestarke (ps).
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10 horsepower (550 ft*lbf/s) converts to 10.138696654 pferdestarke (ps).
Common Use Cases
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Comparing engine power ratings in countries using different horsepower units.
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Specifying power for small engines like lawnmowers or portable generators.
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Interpreting vehicle brochures and repair manuals using regional power units.
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Converting power values in technical documents and resale listings.
Tips & Best Practices
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Confirm which horsepower definition applies in your context before converting.
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Use the tool to facilitate understanding across imperial and metric unit systems.
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Refer to vehicle or machinery documentation to choose the correct power unit.
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Note that neither unit is SI, so additional care is needed when integrating with SI-based measures.
Limitations
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Neither horsepower nor pferdestarke are SI units, which may affect integration with strictly SI-based measurements.
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Small differences in unit definitions and rounding can impact precision when high accuracy is essential.
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Variation in horsepower definitions requires clarifying the specific type referenced for accurate conversion.
Frequently Asked Questions
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What is horsepower (550 ft*lbf/s)?
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It is an imperial unit of power defined as 550 foot-pound-force per second, approximately equal to 745.699872 watts, commonly used for internal combustion engine ratings and small engines.
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What does pferdestarke (ps) mean?
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Pferdestarke, abbreviated as PS, is a metric horsepower unit historically used in German-speaking countries to express mechanical power, equal to 735.49875 watts.
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Why convert between horsepower and pferdestarke?
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Conversion helps accurately compare and communicate engine power ratings across regions using different measurement systems, especially in automotive and industrial contexts.
Key Terminology
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Horsepower (550 ft*lbf/s)
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An imperial power unit defined as 550 foot-pound-force per second, approximately equal to 745.699872 watts, used primarily for rating internal combustion engines and small machinery.
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Pferdestarke (ps)
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A metric horsepower unit historically used in German-speaking areas, equal to 735.49875 watts, often used in automotive power specifications.
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Mechanical power
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The rate at which work is done or energy is transferred, expressed in various units such as horsepower and pferdestarke.