Is Power Converter free?

Yes, completely free with unlimited conversions and no registration required. No hidden fees, ads blocking features, or premium upgrades.

How many power units can I convert?

Power Converter supports 5 primary units: Watts (W), Horsepower (HP), Kilowatts (kW), BTU per hour (BTU/h), and Joules per second (J/s). Convert between any combination instantly.

What is the difference between watts and horsepower?

One horsepower equals 746 watts. Watts measure electrical power, while horsepower traditionally measures mechanical power in engines and motors. Both measure energy transfer rate.

Can I convert kilowatts to horsepower?

Yes. One kilowatt equals approximately 1.341 horsepower. Enter your kilowatt value, select kW as source unit, select HP as target unit, and the converter calculates instantly.

Does Power Converter work on mobile devices?

Yes, works on all devices including iPhone, Android phones, tablets, and desktop computers. The interface adapts automatically to screen size.

Is my data safe when using Power Converter?

Yes, completely safe. All conversions happen in your browser locally. No data is sent to servers, stored, or shared. Your privacy is fully protected.

How accurate is the Power Converter?

Power Converter provides precision to 10 decimal places. All conversions use standard scientific definitions: 1 HP = 746 W, 1 kW = 1000 W, 1 BTU/h = 0.29307 W.

Can I convert decimal values?

Yes, enter any decimal value including values like 1.5, 0.75, or 2.333. The converter handles all decimal precision automatically.

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Power Converter — online

Convert between watts, horsepower, kilowatts and more.

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All power conversions

Watts (W)NaN

Kilowatts (kW)NaN

Megawatts (MW)NaN

Horsepower (hp)NaN

Metric HP (PS)NaN

BTU/hrNaN

How to use Power Converter

Select your source unit

Click the 'From' dropdown menu at the top left and choose your starting unit (Watts, Horsepower, Kilowatts, BTU/h, or Joules/second). The dropdown displays all available power measurement units with their abbreviations.

Enter your value

Type your numerical value into the input field labeled 'Enter amount'. The field accepts decimals and whole numbers. You can paste values directly or use the up/down arrow buttons to adjust incrementally.

Choose your target unit

Click the 'To' dropdown menu on the right side and select your desired output unit (Watts, Horsepower, Kilowatts, BTU/h, or Joules/second). The conversion calculates automatically.

Copy or reset your result

View the converted value displayed in the result box. Click the 'Copy' button to copy the result to your clipboard, or click 'Reset' to clear all fields and start a new conversion.

Frequently Asked Questions

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