Power Converter
Fill in the values and the answer updates as you type.
How the Power Converter works
Each unit is stored in watts and converted through that base. Example: 1 mechanical horsepower = 745.7 W = 0.7457 kW. Metric horsepower (PS) is slightly smaller at 735.5 W, and car makers in different regions use different ones.
Inputs and results
The Power Converter takes 3 inputs and gives 3 results.
What you enter
- Value — starts at 1.
- From — starts at Mechanical horsepower. Choose from: Watts, Kilowatts, Megawatts, Mechanical horsepower, Metric horsepower and BTU per hour and more.
- To — starts at Kilowatts. Choose from: Watts, Kilowatts, Megawatts, Mechanical horsepower, Metric horsepower and BTU per hour and more.
What you get
- Converted value
- Conversion factor
- Same value in watts
Example: Power Converter with the starting values
With value 1, from Mechanical horsepower and to Kilowatts, the calculator returns:
| Converted value | 0.74569987 Kilowatts |
|---|---|
| Conversion factor | 1 Mechanical horsepower = 0.74569987 Kilowatts |
| Same value in watts | 745.6998716 watts |
Change any value above and the results update straight away.
Power Converter FAQ
How do I use the Power Converter?
Enter value, from and to in the fields, then read converted value, conversion factor and same value in watts in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Power Converter calculate?
Convert watts, kilowatts, horsepower, and BTU per hour. It returns converted value, conversion factor and same value in watts from the 3 values you provide.
What values does the Power Converter start with?
It opens with value 1, from Mechanical horsepower and to Kilowatts so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Power Converter free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Power Converter for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.