Power Converter

Convert power units online

Enter a value, choose source and target units — the result updates live. All calculations run locally; nothing is sent to a server.

The base unit is the watt (W). Factors: 1 kW = 1 000 W, 1 MW = 1 000 000 W, 1 mechanical horsepower = 745.699 871 W, 1 BTU/h = 0.293 071 W.

FAQ

Which horsepower is used? Mechanical (imperial) horsepower: 1 hp = 550 ft·lbf/s ≈ 745.70 W. This is the most common definition in everyday use.

What is BTU/h? British Thermal Units per hour — commonly used for heating and cooling equipment ratings. 1 BTU/h ≈ 0.293 W.