Navigation
ConvertSphere

Power Converter

Conversion Results

International System of Units (SI)

Watt (W)-
Kilowatt (kW)-
Megawatt (MW)-
Gigawatt (GW)-
Milliwatt (mW)-
Microwatt (μW)-

Mechanical power

Horsepower (hp)-
Pferdestärke (PS)-

Thermal power

BTU per hour (BTU/h)-
kBTU per hour (kBTU/h)-
Calorie per second (cal/s)-
Kilocalorie per hour (kcal/h)-

Electrical power

Volt-ampere (VA)-
Kilowatt-hour per hour (kWh/h)-
Volt-ampere reactive (Var)-

Other

Erg per second (erg/s)-

About the Power Converter

Supported unit systems:

  • SI: W, kW, MW, GW
  • Mechanical: hp, PS
  • Thermal: BTU/h, kBTU/h, cal/s, kcal/h
  • Electrical: VA, kWh/h, Var

Common conversions:

  • 1 kW = 1000 W
  • 1 hp ≈ 745.7 W (imperial horsepower)
  • 1 PS ≈ 735.5 W (metric horsepower)
  • 1 BTU/h ≈ 0.293071 W
  • 1 cal/s = 4.184 W

Use cases:

  • Electrical engineering: W, kW, MW (motors, generators)
  • Mechanical engineering: hp, PS (engines)
  • HVAC: BTU/h, kBTU/h (cooling capacity)
  • Energy: MW, GW (power plants)
  • Electronics: mW, μW (sensor power)

Note: All conversions follow international standards. VA and Var equal W for purely resistive loads but may differ in AC circuits.