Power Converter
Convert between watts, horsepower, BTU/h, and other power units with precision. Perfect for electrical, mechanical, and HVAC applications.
Power Input
Enter the power value you want to convert
Conversion Results
All power unit conversions
Enter a power value to see conversions
Common Power Examples
Reference power values for everyday items
LED Light Bulb
10 W
Smartphone Charger
20 W
Microwave Oven
1000 W
Hair Dryer
1500 W
Electric Kettle
2000 W
Car Engine (Small)
100 hp
Car Engine (Large)
400 hp
Wind Turbine
2 MW
Power Systems Guide
Understanding different power measurement systems
SI Units (International System)
The watt (W) is the standard SI unit of power, defined as one joule per second.
- • Watt (W) - Base unit
- • Kilowatt (kW) - 1,000 watts
- • Megawatt (MW) - 1,000,000 watts
- • Gigawatt (GW) - 1,000,000,000 watts
Horsepower Systems
Different types of horsepower for various applications.
- • Mechanical HP - 745.7 watts (US standard)
- • Metric HP (PS) - 735.5 watts (European)
- • Electric HP - 746 watts (motor rating)
- • Boiler HP - 9,809.5 watts (steam)
HVAC & Thermal
Power units commonly used in heating and cooling systems.
- • BTU/hour - Heating/cooling capacity
- • Ton of Refrigeration - AC capacity
- • Calorie/second - Thermal power
- • Kilocalorie/hour - Metabolic rate
Electrical Power
Electrical power measurements for AC and DC systems.
- • Volt-Ampere (VA) - Apparent power
- • Kilovolt-Ampere (kVA) - Large systems
- • Watt - Real power (DC or AC)
- • Power Factor affects AC calculations
Frequently Asked Questions