What does joule per second measure?

Joule per second (J/s) measures power as the rate of energy transfer or conversion, equal exactly to one watt (W).

When should I use calorie (th)/hour instead of watts?

Calorie (th)/hour is used mainly for small heat-transfer rates in calorimetry or physiological heat-production contexts where calorie units are more intuitive.

Is calorie (th)/hour an SI unit?

No, calorie (th)/hour is a non-SI unit and is less commonly used compared to the watt, which is the standard SI unit for power.

How to Convert from Joule/second [J/s] to Calorie (th)/hour [cal (th)/h]

Learn how to convert power units from joule per second (J/s) to thermochemical calorie per hour (cal (th)/h) with our easy-to-use online converter. Understand their definitions, uses, and conversion rate.

Joule/second [J/s]

Calorie (th)/hour [cal (th)/h]

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Joule/second [J/s] to Calorie (th)/hour [cal (th)/h] Conversion Table

Joule/second [J/s]	Calorie (th)/hour [cal (th)/h]

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.

Joule/second [J/s] to Calorie (th)/hour [cal (th)/h] Conversion Table
Joule/second [J/s]	Calorie (th)/hour [cal (th)/h]

Explore More Power Units Converter

What Is This Tool?

This unit converter transforms power measurements from joule per second (J/s) to thermochemical calorie per hour (cal (th)/h). It helps quantify thermal power in terms of heat transfer rates using thermal calorie units, commonly applied in calorimetry and physiological studies.

How to Use This Tool?

Input the value you want to convert in joule per second (J/s)
Choose calorie (th)/hour [cal (th)/h] as the target unit
Click the convert button to get the equivalent thermal calorie per hour value

Key Features

Accurately converts power units between joule/second and calorie (th)/hour
Supports conversions used in thermodynamics, HVAC, and metabolic research
Provides clear definitions and practical use cases for each unit
Offers example calculations for quick reference

Examples

2 Joule/second [J/s] equals approximately 1720.8413 Calorie (th)/hour [cal (th)/h]
0.5 Joule/second [J/s] equals approximately 430.2103 Calorie (th)/hour [cal (th)/h]

Common Use Cases

Specifying electrical or mechanical power in engineering applications
Reporting small heat transfer rates in laboratory chemical calorimetry
Expressing metabolic heat-production rates in physiological studies
Measuring very low heat losses in small device components

Tips & Best Practices

Use the converter for steady-state power transfers to ensure accuracy
Understand the difference between SI units and non-SI thermal units before converting
Refer to the provided examples for verifying your conversions
Remember that watt is the preferred SI unit for power in most scientific contexts

Limitations

Calorie (th)/hour is a non-SI unit and less commonly used than watts
Conversion precision depends on exact definitions of the calorie and time units
Assumes steady-state power transfer; transient power changes may need additional considerations

Frequently Asked Questions

What does joule per second measure?: Joule per second (J/s) measures power as the rate of energy transfer or conversion, equal exactly to one watt (W).
When should I use calorie (th)/hour instead of watts?: Calorie (th)/hour is used mainly for small heat-transfer rates in calorimetry or physiological heat-production contexts where calorie units are more intuitive.
Is calorie (th)/hour an SI unit?: No, calorie (th)/hour is a non-SI unit and is less commonly used compared to the watt, which is the standard SI unit for power.

Key Terminology

Joule per second (J/s): An SI derived unit of power, equal to one watt, measuring the rate at which energy is transferred or expended.
Calorie (th)/hour [cal (th)/h]: A non-SI unit of power representing the rate of heat transfer of one thermochemical calorie delivered per hour.
Power: The rate at which energy is transferred, converted, or used.

Quick Knowledge Check

What is the SI equivalent of 1 joule per second?

1 calorie (th)/hour

1 watt

1 kilowatt

Which unit is preferred for expressing power in most scientific fields?

Calorie (th)/hour

Watt

Horsepower

In which context is calorie (th)/hour commonly used?

Laboratory calorimetry

Electrical power consumption

Mechanical engine power

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