Power Unit Converter - W kW HP

Convert Watt, Kilowatt and Horsepower instantly

Power Converter turns Watts, Kilowatts and Horsepower into each other in a single tap. Whether you are reading an appliance label, checking a motor spec, comparing engine output or studying for an electrical exam, the answer appears the moment you type.

★ Core features
• W ↔ kW ↔ HP conversion in real time
• Mechanical horsepower (1 HP = 745.7 W) for engine and motor ratings
• Decimal precision from 0 to 8 digits — see clean round numbers or lab-level accuracy
• Conversion history keeps your last 10 calculations
• One-tap copy to clipboard — paste into notes, messages or reports
• Adjustable font size for readability
• Light, dark and system-follow themes
• Clean Material 3 interface, optimized for one-hand use

★ Built for
• Electricians and electrical engineering students reading motor nameplates
• Mechanics and car enthusiasts comparing engine horsepower vs kilowatts
• HVAC technicians sizing pumps, compressors and fans
• Home users checking appliance power draw and energy bills
• Anyone dealing with power ratings on a datasheet

★ Why this converter
Most power conversion tools bury the answer behind menus or clutter the screen with units you never need. Power Converter stays focused on the three units that matter for real-world power: watt, kilowatt and horsepower. Type once, read three results. Change precision when you need more or fewer decimals. Review your last calculations from the history screen when you forget the number.

Works offline for the conversion itself — no account, no sign-up, no data collection for calculations. The app is supported by ads.

Keep a reliable watt to horsepower calculator in your pocket for the next time a spec sheet throws kW at you.