What Is This Tool?
This converter helps translate power values from the thermochemical calorie per hour, a unit of thermal power, into foot pound-force per hour, a unit commonly used for mechanical power in imperial systems.
How to Use This Tool?
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Input the value in calorie (th)/hour that you want to convert.
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Select calorie (th)/hour as the input unit and foot pound-force/hour as the output unit.
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Click the convert button to get the equivalent power in ft·lbf/hr.
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Review the result, which is calculated using the exact conversion rate.
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Use the conversion formula as a reference for manual calculations if needed.
Key Features
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Converts small heat transfer rates measured in cal (th)/h into ft·lbf/hr.
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Supports legacy and non‑SI unit conversions for specialized engineering and scientific contexts.
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Provides clear conversion rate and formula for reliable calculations.
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Includes practical examples for immediate understanding.
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Browser-based and easy to use without installation.
Examples
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Convert 5 cal (th)/h: 5 × 3.0859600326 = 15.4298 ft·lbf/hr
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Convert 0.1 cal (th)/h: 0.1 × 3.0859600326 = 0.3086 ft·lbf/hr
Common Use Cases
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Reporting small heat-transfer rates during chemical reactions in laboratory calorimetry.
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Expressing metabolic or physiological heat production rates using calories per hour.
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Specifying low heating or heat loss rates for small components in non-SI thermal units.
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Documenting mechanical power or work rates for legacy imperial-system equipment.
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Converting historical power data from imperial units to SI units for comparison.
Tips & Best Practices
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Always double-check input units before conversion to avoid errors.
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Use the provided conversion formula for precise manual calculations.
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Understand that both units measure very small power rates, so expect small decimal results.
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Convert to SI units when standardization is necessary for scientific communication.
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Apply this tool especially when working with legacy or specialized engineering documents.
Limitations
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These units represent very small power values and can yield tiny decimal results needing careful interpretation.
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Non-SI units like calorie (th)/hour and foot pound-force/hour may not be familiar in many scientific disciplines.
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Conversion results should be verified especially when high precision is required.
Frequently Asked Questions
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What does calorie (th)/hour measure?
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It measures thermal power as the rate of heat transfer equal to one thermochemical calorie delivered every hour.
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Why convert calorie (th)/hour to foot pound-force/hour?
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Converting helps translate thermal power rates into mechanical power units for easier comparison and reporting in various fields.
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Are calorie (th)/hour and foot pound-force/hour SI units?
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No, both are non-SI units used mainly in specialized contexts, with the watt being the preferred SI unit for power.
Key Terminology
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Calorie (th)/hour [cal (th)/h]
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A measure of thermal power indicating heat transfer rate of one thermochemical calorie delivered per hour.
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Foot pound-force/hour [ft·lbf/hr]
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A unit of mechanical power representing one foot-pound-force of work or energy transferred every hour.
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Conversion Rate
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The multiplier used to convert values from calorie (th)/hour to foot pound-force/hour, specifically 3.0859600326.