Power Converter: Convert Watts, Horsepower, BTU & Kilowatts Instantly

Power Converter: Accurate Power Unit Conversion Online

Manual power conversions are prone to mistakes and take unnecessary time. Our Power Converter tool simplifies this process by converting a value from one power unit to another as you type, with units such as Watts (W), Horsepower (HP), BTU/hour, and Kilowatts (kW).

This converter supports 21 standardized power units used in electrical, mechanical, and thermal systems. Just enter your value, choose the From and To units, and the converted value appears as you type.

Whether you’re a student learning energy principles, a developer working with engineering data, or an electrician calculating machine output, this tool gives you a quick result rounded to about 10 significant figures.

How to Use the Power Converter

1. Enter a Power Value:  
   Type in the numeric value you want to convert (e.g., 1500).
2. Select the From and To Units:  
   Use the two lists to pick units like Watts, Kilowatts, BTU/hour, Horsepower, and others.
3. Read the Result:  
   The converted value appears as you type, in the large line above the boxes and in the To box. Typing in the To box converts back into the From box.
4. View or Copy Results:
   • View the converted value directly on-screen.
   • Copy either number using the Copy icon beside its box.

💡 Pro Tip: After converting power, explore related tools like our Pressure Converter or Electric Charge Converter for other engineering conversions.

Supported Power Units

Our converter supports these mechanical, thermal, and electrical power units:

• BTU (SI)/hour
• BTU (thermo)/hour
• BTU (thermo)/minute
• BTU (thermo)/second
• Calorie (thermo)/minute
• Calorie (thermo)/second
• Erg/second
• Foot-pound force/hour
• Foot-pound force/minute
• Foot-pound force/second
• Horsepower (UK)
• Horsepower (boiler)
• Horsepower (electric)
• Horsepower (metric)
• Horsepower (550 ft·lbf/s)
• Kilocalorie (thermo)/minute
• Kilocalorie (thermo)/second
• Kilowatt (kW)
• Megawatt (MW)
• Milliwatt (mW)
• Watt (W)

Each conversion uses standard conversion factors, and results are rounded to about 10 significant figures.

Why Use the Power Converter?

Power conversion is critical in many industries from electrical engineering to mechanical energy systems. Using a reliable online converter reduces manual calculation and the slips that come with it.

1. For Engineers

Convert generator, motor, or turbine power outputs from one unit to another.

2. For Students

Understand relationships between energy, work, and time. Perfect for physics or mechanical labs.

3. For Energy Professionals

Compare equipment ratings by converting between BTU/hour and kilowatts.

4. For Everyday Users

Convert appliance and equipment ratings, such as watts to horsepower or BTU/hour to kilowatts.

💡 Pro Tip: Motor and engine ratings often list torque next to power, and you can convert torque units with our Torque Converter.

Example Conversion

Input: 1 Kilowatt (kW)

Output:

• 1 kW = 1,000 Watts (W)
• 1 kW = 1.34102209 Horsepower (550 ft·lbf/s)
• 1 kW = 56.90709916 BTU (thermo)/minute
• 1 kW = 0.001 Megawatts (MW)
• 1 kW = 239.0057361 Calorie (thermo)/second

The tool shows one result at a time: choose a different To unit to get each line above, then copy the number with the Copy icon beside the To box.

Benefits of the Power Converter

• Instant Calculations: Real-time conversions with no formulas needed.
• Wide Unit Coverage: Converts across electrical, mechanical, and thermal systems.
• High Accuracy: Based on standardized power conversion equations.
• Copy Either Number: Copy the From or To number directly for use in reports or spreadsheets.
• Runs in Your Browser: The conversion is calculated by the page script, not on our server.
• Part of a Set: One of our free unit converters, alongside length, weight, pressure and temperature.

Real-World Applications

• Engineering Design: Compare mechanical and electrical outputs.
• Energy Systems: Convert turbine, generator, or appliance power ratings.
• Research & Development: Convert prototype power figures between the units different teams or suppliers use.
• Education: Learn and demonstrate power equivalences by switching units and watching the number change.

Related Tools

Explore more free and accurate tools from SEO Site Checker:

• Pressure Converter
• Temperature Converter
• Electric Charge Converter

💡 Pro Tip: After technical calculations, evaluate your website’s health using our Website SEO Checker to improve speed and visibility.