Power & Energy Converters
Convert between units of power-energy-converters — fast, accurate, and free. No sign-up, works entirely in your browser.
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
1Enter Your Value
—
Converted Value
Power
Energy
How to Use
- Enter your details into the fields above.
- Click the calculate button to get your result instantly.
- Use the clear button to start a new calculation.
Example
- 1 kW → watts → 1000 W
- 1 hp → watts → 745.6999 W
Formula
1 kW = 1000 W, 1 MW = 1000 kW, 1 hp = 745.69987158227 W (mechanical horsepower). For energy: 1 Wh = 3600 J and 1 kWh = 3.6 MJ. Power (W) and energy (J) are different quantities — power × time = energy.
About Power & Energy Converters
W, kW, kWh, hp and more. This free online tool gives you fast, accurate results without registration or downloads.
Everything runs locally in your browser, so your data is never uploaded or stored — privacy first.
Frequently Asked Questions
How do I convert kilowatts to horsepower? +
Enter the value, select "Kilowatt (kW)" as the source unit, and the converter instantly shows the equivalent in horsepower and other power units. 1 kW equals 1.341 horsepower.
How do I convert kilowatt-hours to joules? +
Enter the value, select "Kilowatt-hour (kWh)" as the source unit, and the converter instantly shows the equivalent in joules and other energy units. 1 kWh equals 3,600,000 joules.
What is the difference between power and energy? +
Power is the rate of energy use (watts), while energy is the total amount (joules or watt-hours). This converter covers both.
Is the Power & Energy Converter free to use? +
Yes, it is completely free with no registration or download required.