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Quickly and accurately convert between all common power units online. Our free Power Converter supports watts (W), kilowatts (kW), megawatts (MW), gigawatts (GW), horsepower (hp), BTUs per hour, foot-pounds per minute, and more. Perfect for calculations in electrical engineering, mechanical engineering, energy analysis, or physics. Get instant power unit conversions with ease.
Our tool supports a wide range of power units, including Watts (W), Kilowatts (kW), Megawatts (MW), Gigawatts (GW), milliWatts (mW), microWatts (µW), Horsepower (HP), Metric Horsepower (PS), Foot-Pounds per Minute (ft-lb/min), and BTU per Hour (BTU/hr).
Our online Power Converter uses precise, standard mathematical conversion factors, ensuring high accuracy suitable for engineering calculations, energy analysis, technical applications, and comparing specifications.
Yes, our Power Converter is 100% free to use online. There are no costs, subscriptions, or limitations on the number of power conversions you can perform.
To convert Watts (W) to Kilowatts (kW), select 'Watts' as your 'Convert From' unit and 'Kilowatts' as your 'Convert To' unit. Enter the value in Watts, and the converter will instantly show you the equivalent in Kilowatts. (1 Kilowatt = 1000 Watts).
Yes, this is a very common conversion for comparing engine power or motor ratings. Select 'Kilowatts' as the input and 'Horsepower' as the output (or vice versa), enter the value, and get the conversion. Our tool includes both standard mechanical HP and metric horsepower (PS).
BTU per Hour (BTU/hr) is a unit of power commonly used in heating, ventilation, and air conditioning (HVAC) systems, as well as for rating water heaters and grills, particularly in the United States. It measures the rate of energy transfer as heat.
Convert between a comprehensive range of power units including Watts (W), Kilowatts (kW), Megawatts (MW), Horsepower (HP - mechanical and electrical), Metric Horsepower (PS), Foot-Pounds per Minute (ft-lb/min), BTU per Hour (BTU/hr), and more. Covers units used across different engineering and technical fields.
Receive precise power conversion results in real-time as you enter values. Our converter uses standard, accurate factors for reliable measurements every time.
Whether you're working on energy consumption calculations, comparing engine power (kW vs HP), designing electrical systems, or evaluating HVAC performance (BTU/hr), rely on our tool for high-precision power conversions.
Convert power units quickly and effortlessly with a clean, intuitive interface. Our free online tool is designed for speed and simplicity, accessible on any device.
Choose the power unit you want to convert from and to. For example, select Watts to Kilowatts, Horsepower to Watts, or BTU/hr to Kilowatts.
Input the power measurement value that you need to convert into the designated field. The tool will instantly calculate the conversion.
See the precise converted power displayed immediately for the target unit you selected. Fast, accurate, and reliable power unit conversion.
Power is the rate at which work is done or energy is transferred or converted. In simpler terms, it measures how quickly energy is used or produced. The standard SI unit for power is the Watt (W). Understanding power and being able to convert between different power units is essential across various scientific, engineering, and everyday applications.
Power can manifest in various forms, including electrical power (rate of electrical energy flow), mechanical power (rate of doing work), thermal power (rate of heat transfer), etc. While the Watt is the universal SI unit for all forms of power, specific units are common in different fields. For example, electrical power is often in Watts (W), Kilowatts (kW). Mechanical power uses Horsepower (HP) or foot-pounds per minute (ft-lb/min). Thermal power might use BTU per hour (BTU/hr) or calories per second.
Watts (W) are used for small electrical devices (light bulbs). Kilowatts (kW) are used for larger appliances and rating electrical power consumption or generation. Megawatts (MW) and Gigawatts (GW) are for power plants or large industrial facilities. Horsepower (HP) is commonly used for rating engines and motors (cars, pumps). Metric Horsepower (PS) is a similar unit used in some countries. BTU/hr is prevalent in HVAC systems.
Accurate power conversion is critical for comparing specifications of devices or systems (e.g., choosing between two motors rated in kW vs HP), calculating energy efficiency, designing electrical or mechanical systems, and understanding energy bills (often based on kilowatt-hours, a unit of energy, which relates directly to power). Using a reliable converter ensures precise calculations and informed decisions.
Our Power Converter allows conversion not just within electrical units (W to kW) or mechanical units (HP to ft-lb/min), but also between different types of power (e.g., Watts to Horsepower, Kilowatts to BTU/hr). These conversions are based on fixed relationships established by definitions of the units, enabling you to work seamlessly across different engineering disciplines or compare diverse systems.
It's important not to confuse power with energy. Power is the *rate* at which energy is used or transferred (Energy per unit time). Energy is the total amount of work done or heat transferred (often measured in Joules, Watt-hours, kilowatt-hours, calories). Think of power as the speed of using energy. Our tool focuses on converting the *rate* (Power), not the total amount (Energy), although these concepts are closely related.
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