Power Converter

About This Tool

This Power Converter is a fundamental tool for physics, engineering, and everyday applications. It converts units of power, which is the rate at which energy is transferred or work is done. The base unit is the watt (W), the SI unit for power.

From the electrical power consumption of appliances (watts and kilowatts) and the output of engines (horsepower) to the capacity of heating and cooling systems (BTU/hour), this tool covers a wide range of units essential for mechanical, electrical, and thermal calculations.

Tips & Features

• The Watt Standard: The watt (W) is the universal standard, defined as one joule of energy per second (1 J/s). All other power units are converted by relating their value back to watts.
• Varieties of Horsepower: Be aware that there are several definitions of horsepower. The most common are mechanical horsepower (approx. 745.7 W), used for U.S. automotive ratings, and metric horsepower (approx. 735.5 W). This tool includes multiple types for accuracy.
• BTU/hour: This unit is primarily used in the HVAC and appliance industries in the United States to describe the rate of heat transfer, indicating the cooling or heating capacity of a system.