Power Converter Units
Convert watts, kilowatts, horsepower and BTU per hour.
Power Converter is a free online tool that convert watts, kilowatts, horsepower and BTU per hour. It runs entirely in your web browser using plain JavaScript, so files are processed on your own device and never uploaded to a server. There is no sign-up, no file size limit imposed by the site, no watermark and no paid tier.
- Price
- Free — no account, no quota, no watermark
- Category
- Units
- Where it runs
- In your browser, on your device
- Files uploaded
- None
- Technology
- plain JavaScript
- Settings
- 3
- Works offline
- Yes, after the first visit
About Power Converter
Power Converter is one of 19 units tools on DuckyTools, and like all of them it runs entirely inside this page. Convert watts, kilowatts, horsepower and BTU per hour.
How to use it
- Enter value, from and to.
- Results update the moment anything changes.
The 3 settings
| Setting | What it does | Default |
|---|---|---|
| Value | A numeric value. | 1 |
| From | Choose from 6: Watts, Kilowatts, Megawatts, Horsepower (mechanical), Metric horsepower (PS), BTU per hour. | Kilowatts |
| To | Choose from 6: Watts, Kilowatts, Megawatts, Horsepower (mechanical), Metric horsepower (PS), BTU per hour. | Horsepower (mechanical) |
Conversion reference
Exact factors used by this converter, expressed against watts (W). These are the defined values, not rounded approximations.
| Unit | Symbol | In W |
|---|---|---|
| Watts | W | 1 |
| Kilowatts | kW | 1,000 |
| Megawatts | MW | 1,000,000 |
| Horsepower (mechanical) | hp | 745.699871582 |
| Metric horsepower (PS) | PS | 735.49875 |
| BTU per hour | BTU/h | 0.29307107 |
Under the hood
| Runs on | plain JavaScript — runs the whole thing |
| Controls | Value, From, To |
Questions
What does the from option change?
It offers 6 choices — Watts, Kilowatts, Megawatts and Horsepower (mechanical) and more. The default is Kilowatts, which suits most cases; change it when your input or your destination calls for something specific.