What does attojoule per second measure?

Attojoule per second measures an extremely small rate of energy transfer, equivalent to 10^-18 watts.

Why convert from attojoule/second to calorie (th)/hour?

This conversion allows expressing tiny power values in a unit commonly used for thermal power, aiding comparison in calorimetry and physiological measurements.

Is calorie (th)/hour an SI unit?

No, the thermochemical calorie per hour is a non-SI unit; the watt is the preferred SI unit for power.

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

Learn how to convert power values from attojoule per second to thermochemical calories per hour with this easy-to-use online unit converter designed for ultra-low power and nanoscale measurements.

Attojoule/second [aJ/s]

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

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

Attojoule/second [aJ/s] to Calorie (th)/hour [cal (th)/h] Conversion Table

Attojoule/second [aJ/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.

Attojoule/second [aJ/s] to Calorie (th)/hour [cal (th)/h] Conversion Table
Attojoule/second [aJ/s]	Calorie (th)/hour [cal (th)/h]

Explore More Power Units Converter

What Is This Tool?

This converter tool allows you to transform power measurements from attojoule per second, a unit for extremely small energy transfer rates, into thermochemical calorie per hour, a unit used to quantify thermal power in laboratory and physiological contexts.

How to Use This Tool?

Enter the power value in attojoule/second [aJ/s] in the input field
Select the source unit as attojoule/second [aJ/s]
Choose calorie (th)/hour [cal (th)/h] as the target unit
Click the convert button to get the equivalent value in calorie (th)/hour
Review the result and use it for thermal analysis or quantum device evaluation

Key Features

Converts power measurements from attojoule/second [aJ/s] to calorie (th)/hour [cal (th)/h]
Supports translation of ultra-low power values related to quantum and nanoscale devices
Easy online interface suitable for research and technical applications
Uses precise conversion factors without approximation guessing
Helps compare power data in thermal calorimetry and metabolic studies

Examples

1 aJ/s equals approximately 8.604206500956e-16 cal(th)/h
10 aJ/s converts to about 8.604206500956e-15 cal(th)/h

Common Use Cases

Characterizing leakage and standby power in ultra-low-power microelectronic sensors
Measuring energy transfer rates in single-photon detectors and superconducting qubits
Conducting nanoscale thermal metrology and cryogenic heat flow experiments
Reporting heat-transfer rates in laboratory calorimetry of chemical reactions
Expressing metabolic heat production rates in physiological studies
Specifying heat-loss rates for small components using non-SI thermal units

Tips & Best Practices

Ensure input values are within the measurable range for ultra-small power units
Use this converter mainly for low power detections related to niche scientific fields
Verify unit selections before conversion to avoid mistakes
Consider the watt as the standard unit for power in most engineering tasks
Apply consistent units when comparing thermal data to avoid confusion

Limitations

Results yield extremely small values that may be difficult to measure precisely
Calorie (th)/hour is not an SI unit; watts are preferred in scientific contexts
Measurement sensitivity and instrument precision limit accuracy
Conversion constants involve approximations affecting precision

Frequently Asked Questions

What does attojoule per second measure?: Attojoule per second measures an extremely small rate of energy transfer, equivalent to 10^-18 watts.
Why convert from attojoule/second to calorie (th)/hour?: This conversion allows expressing tiny power values in a unit commonly used for thermal power, aiding comparison in calorimetry and physiological measurements.
Is calorie (th)/hour an SI unit?: No, the thermochemical calorie per hour is a non-SI unit; the watt is the preferred SI unit for power.

Key Terminology

Attojoule/second [aJ/s]: A unit of power equal to 10^-18 joules transferred per second, quantifying extremely small energy transfer rates.
Calorie (th)/hour [cal (th)/h]: A unit of power measuring heat transfer rate as one thermochemical calorie per hour, used for thermal power quantification.
Power: The rate at which energy is transferred or converted, commonly measured in watts or other specialized units depending on context.

Quick Knowledge Check

Which unit represents an extremely small power of 10^-18 watts?

Calorie (th)/hour

Attojoule/second

Watt

What does calorie (th)/hour measure?

Thermal power rate

Electrical current

Voltage

Why might the conversion results be challenging to measure accurately?

Due to instrument sensitivity and very small values

Because attojoule is a large power unit

Because calorie per hour is an SI unit

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