How to Use Power Calculator
-
1. Enter a Value
Type a power value into the input field.
-
2. Select Source and Target Units
Choose from Watts (W), Kilowatts (kW), Megawatts (MW), Horsepower (hp), or BTU/hr using the dropdowns.
-
3. View the Conversion
The converted result and the exact formula used are displayed.
The Technical Details
This interactive web utility provides fast, reliable, and completely private data transformations. In modern workflows, quick formatting, conversions, or estimations are essential. By running all logic entirely in your browser with client-side JavaScript, this tool guarantees that your data never leaves your machine. This approach delivers maximum performance and absolute data privacy, as no information is ever sent to a server.
Frequently Asked Questions
How many watts are in a kilowatt?
1 kilowatt (kW) = 1,000 watts (W). A kilowatt-hour (kWh) is the energy consumed by running a 1 kW device for one hour.
What is the difference between mechanical and electrical horsepower?
1 mechanical horsepower = 745.7 W. 1 electrical horsepower = 746 W. The tool uses the mechanical horsepower definition.
What is BTU per hour used for?
BTU/hr (British Thermal Units per hour) is commonly used to measure the power output or capacity of heating and cooling systems such as air conditioners and furnaces.
Is my data sent to a server?
No. All conversions run locally in your browser using client-side JavaScript; nothing is transmitted or stored.