Power Unit Converter
Convert between Watt, Kilowatt, Megawatt, Horsepower (mechanical/metric), BTU/hour, Calorie/second, and more. Free, fast, and works entirely in your browser with no sign-up required.
Power Unit Converter
Convert between 9 power units including Watt, Kilowatt, Megawatt, Horsepower (mechanical & metric), BTU/hour, Calorie/second, Foot-pound/second, and Joule/second. Live bidirectional conversion with full table, copy, download, and sample presets.
Quick Presets
Power Converter
1 Kilowatt
= 1.341022 Horsepower (mechanical)
1 kW = 1.34102209 hp(I)
All Units
| Unit | Symbol | Category | Value | |
|---|---|---|---|---|
| Watt | W | Metric | 1000 | |
| Kilowatt | kW | Metric | 1 | |
| Megawatt | MW | Metric | 0.001 | |
| Joule/second | J/s | Metric | 1000 | |
| Horsepower (mechanical) | hp(I) | Mechanical | 1.341022 | |
| Horsepower (metric) | hp(M) | Mechanical | 1.359622 | |
| Foot-pound/second | ft·lbf/s | Mechanical | 737.562149 | |
| BTU/hour | BTU/h | Thermal | 3412.141633 | |
| Calorie/second | cal/s | Thermal | 238.845897 |
Frequently Asked Questions
What is the Power Unit Converter?
The Power Unit Converter is a free online tool that convert between watt, kilowatt, megawatt, horsepower (mechanical/metric), btu/hour, calorie/second, and more. It runs entirely in your browser with no installation or sign-up needed.
Mechanical vs metric HP?
Mechanical ≈ 745.7W (US/UK), metric ≈ 735.5W (most other countries).
How many units?
Nine: Watt, kW, MW, HP (mechanical), HP (metric), BTU/hr, cal/s, ft·lbf/s, J/s.
Free?
Yes — all client-side.
Is my data safe with this tool?
Absolutely. The Power Unit Converter processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the Power Unit Converter work on mobile devices?
Yes, the Power Unit Converter is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Power Unit Converter in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
How do I use the Power Unit Converter?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The Power Unit Converter works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Power Unit Converter
Power Unit Converter is a free, browser-based tool in our Converter Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.