Power Converter
Convert between Watts, kW, MW, horsepower, and dBm.
About Power Conversion
Includes engineering units like horsepower and dBm. dBm conversions assume 1 mW = 0 dBm.
About this Power Converter
Convert between Watts, kilowatts, horsepower, and dBm. Our power converter supports all common power measurements used in electrical engineering, automotive, and telecommunications. Perfect for converting electrical power, engine power, or any scenario requiring power conversions. The tool provides accurate conversions with support for many power units.
Key Features
Convert between Watts, kilowatts, horsepower, and dBm
Support for electrical and mechanical power units
Real-time conversion as you type
Bidirectional conversion
Accurate calculations
Support for many power units
Easy unit switching
Works entirely in your browser for privacy
How to Use
Enter the power value you want to convert
Select the source unit (e.g., horsepower)
Select the target unit (e.g., kilowatts)
View the converted value automatically
Switch units to convert in reverse
Use for any power conversion needs
Copy converted values if needed
Convert between any supported units
Popular Use Cases
Convert engine power between units
Calculate electrical power in different units
Convert power for engineering
Calculate power for equipment
Convert power for international use
Understand power in different units
Convert power for telecommunications
Calculate power ratings
Tips & Best Practices
1 horsepower = 745.7 Watts = 0.7457 kilowatts
1 kilowatt = 1,000 Watts = 1.34102 horsepower
dBm is a logarithmic unit used in telecommunications
Use metric units (Watts, kilowatts) for international standards
Use horsepower for automotive applications
Verify conversions for important calculations
Use for accurate power calculations
Frequently Asked Questions
What power units are supported?
The tool supports common power units including Watts, kilowatts, horsepower (mechanical and metric), and dBm (decibels relative to milliwatt).
How accurate are the conversions?
Conversions are highly accurate, using standard conversion factors. The tool provides precise calculations for all supported units.
What is the difference between mechanical and metric horsepower?
Mechanical horsepower (hp) is 745.7 Watts, while metric horsepower (PS) is 735.5 Watts. The tool typically uses mechanical horsepower unless specified.
What is dBm?
dBm is a logarithmic unit expressing power relative to 1 milliwatt. It's commonly used in telecommunications and radio frequency engineering.