Power Conversion Calculator

W

Formulas for Power Conversion

Here are the formulas for converting between common power units: Watts (W), Kilowatts (kW), Horsepower (HP), and BTU/hour (BTU/h).

1. Watts (W) to Other Units
  • \text{kW} = \text{W} \times 0.001
  • \text{HP} = \text{W} \times 0.00134102
  • \text{BTU/h} = \text{W} \times 3.41214
2. Kilowatts (kW) to Other Units
  • \text{W} = \text{kW} \times 1000
  • \text{HP} = \text{kW} \times 1.34102
  • \text{BTU/h} = \text{kW} \times 3412.14
3. Horsepower (HP) to Other Units
  • \text{W} = \text{HP} \times 745.7
  • \text{kW} = \text{HP} \times 0.7457
  • \text{BTU/h} = \text{HP} \times 2544.43
4. BTU/hour (BTU/h) to Other Units
  • \text{W} = \text{BTU/h} \times 0.293071
  • \text{kW} = \text{BTU/h} \times 0.000293071
  • \text{HP} = \text{BTU/h} \times 0.000393014

Power Conversion Table

From / ToWatts (W)Kilowatts (kW)Horsepower (HP)BTU/hour (BTU/h)
1 Watt (W)10.0010.001341023.41214
1 Kilowatt (kW)100011.341023412.14
1 Horsepower (HP)745.70.745712544.43
1 BTU/hour (BTU/h)0.2930710.0002930710.0003930141
  1. Watts (W): The SI unit of power, equivalent to one joule per second.
  2. Kilowatts (kW): A larger unit of power; 1 \, \text{kW} = 1000 \, \text{W}.
  3. Horsepower (HP): Commonly used in mechanical systems; 1 \, \text{HP} \approx 745.7 \, \text{W}.
  4. BTU/hour (BTU/h): Often used in heating and cooling; 1 \, \text{BTU/h} \approx 0.293071 \, \text{W}.