Watt to BTU (th)/hour Conversion
Convert between Watt and BTU (th)/hour quickly and accurately.
How to Convert Watt to BTU (th)/hour
Conversion Formula
Example
Convert 15 W to Btu (th)/h:
Unit Information
Learn about the power units you're converting between
Watt
W
Definition
The watt (W) is the SI derived unit of power, representing the rate of energy transfer or conversion. It is defined as one joule per second and is the standard unit for measuring electrical power, mechanical power, and thermal power in scientific and engineering applications.
History/Origin
The watt was named after James Watt, the Scottish engineer who improved the steam engine. It was adopted as the SI unit of power in 1960, replacing the horsepower as the standard unit for power measurements in the International System of Units.
Current Use
Widely used in electrical engineering, mechanical engineering, and physics for measuring power consumption, generation, and transfer. Essential for calculating energy efficiency, electrical load, and power ratings of devices and systems.
Multiplier
1
Offset
0
BTU (th)/hour
Btu (th)/h
Definition
The BTU (th)/hour is a unit of power equal to approximately 0.293 watts, representing the power output of one British Thermal Unit (thermochemical) per hour. It is used in HVAC systems, heating, and cooling applications for measuring the power output of heating and cooling systems.
History/Origin
The BTU (th)/hour was defined to measure the power output of heating and cooling systems using thermochemical calculations. It is used in HVAC systems, heating, and cooling applications for measuring the power output of heating and cooling systems.
Current Use
Used in HVAC systems, heating, and cooling applications for measuring the power output of heating and cooling systems. Essential for HVAC specifications and thermal power ratings.
Multiplier
0.293
Offset
0
Watt to BTU (th)/hour Conversion Table
| Watt [W] | BTU (th)/hour [Btu (th)/h] |
|---|---|
| 1 W | 3.414426 Btu (th)/h |
| 10 W | 34.144259 Btu (th)/h |
| 25 W | 85.360649 Btu (th)/h |
| 50 W | 170.721297 Btu (th)/h |
| 100 W | 341.442595 Btu (th)/h |
| 0 W | 0E+0 Btu (th)/h |
| -10 W | -34.144259 Btu (th)/h |
| -40 W | -136.577038 Btu (th)/h |
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