What does Btu (th)/hour measure?

It measures the rate of heat transfer using thermochemical British thermal units per hour, often applied in heating and cooling contexts.

When should I use milliwatts instead of Btu (th)/hour?

Milliwatts are useful to express low power levels in electrical or optical devices such as sensors, amplifiers, and RF transmitters.

Does this converter account for real system losses?

No, the conversion assumes ideal conditions without considering real-world inefficiencies or system variations.

How to Convert from Btu (th)/hour [Btu (th)/h] to Milliwatt [mW]?

Learn how to easily convert power measurements from Btu (th)/hour to milliwatt with this online unit converter tool. Understand key features, use cases, and limitations for accurate energy unit conversion.

Btu (th)/hour [Btu (th)/h]

Milliwatt [mW]

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

Btu (th)/hour [Btu (th)/h] to Milliwatt [mW] Conversion Table

Btu (th)/hour [Btu (th)/h]	Milliwatt [mW]

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.

Btu (th)/hour [Btu (th)/h] to Milliwatt [mW] Conversion Table
Btu (th)/hour [Btu (th)/h]	Milliwatt [mW]

Explore More Power Units Converter

What Is This Tool?

This converter transforms power values from thermochemical British thermal units per hour (Btu (th)/h) into milliwatts (mW), allowing comparison between thermal power rates and small electrical power measurements commonly used in engineering and electronics.

How to Use This Tool?

Enter the power value in Btu (th)/hour you wish to convert.
Select Btu (th)/hour as the source unit and milliwatt as the target unit.
Click the convert button to see the equivalent power in milliwatts.

Key Features

Converts Btu (th)/hour, a thermal power measurement, to milliwatt, an electrical power unit.
Supports power unit conversion relevant to HVAC, heating systems, and electronic device measurements.
Browser-based and user-friendly interface for quick energy rate transformations.

Examples

Convert 2 Btu (th)/hour to milliwatts resulting in approximately 585.75 mW.
Convert 0.5 Btu (th)/hour to milliwatts resulting in approximately 146.44 mW.

Common Use Cases

Sizing and rating HVAC equipment such as furnaces and air conditioners.
Specifying heat output for water heaters, boilers, and heat exchangers.
Estimating heating or cooling loads for buildings and refrigeration systems.
Measuring power consumption or output of small electronic components.
Calculating optical and RF device power outputs for safety and link-budget analysis.

Tips & Best Practices

Ensure proper unit selection to avoid misinterpretation between thermal and electrical power.
Use this tool to integrate thermal power rates with electronic power specifications effectively.
Validate results considering system losses and specific application context.

Limitations

The conversion uses constant definitions and does not reflect real-world system inefficiencies or variations.
Btu (th)/hour applies mainly to heat transfer scenarios, while milliwatt covers a broader range of power types.
Conversion precision may be influenced by rounding and the thermochemical Btu definition used.

Frequently Asked Questions

What does Btu (th)/hour measure?: It measures the rate of heat transfer using thermochemical British thermal units per hour, often applied in heating and cooling contexts.
When should I use milliwatts instead of Btu (th)/hour?: Milliwatts are useful to express low power levels in electrical or optical devices such as sensors, amplifiers, and RF transmitters.
Does this converter account for real system losses?: No, the conversion assumes ideal conditions without considering real-world inefficiencies or system variations.

Key Terminology

Btu (th)/hour: A unit of power denoting one thermochemical British thermal unit transferred per hour, used in heating and cooling measurements.
Milliwatt (mW): One thousandth of a watt (10⁻³ W), an SI unit of power for measuring low-level electrical and optical energy transfer.

Quick Knowledge Check

What type of quantity does Btu (th)/hour represent?

Electrical power

Thermal power

Magnetic field

What is a milliwatt commonly used to measure?

Heat output of boilers

Low electrical power levels

Airflow rates

Which is a limitation of this conversion?

Includes real-world losses

Ignores system efficiency variations

Converts energy to volume

Share Us

Similar Calculators

Online Heat Flux Density Units Converter Online Weight and Mass Units Converter Online Fuel Consumption Units Converter Online Moment of Inertia Units Converter Online Length Units Converter