Power Conversion

Power Unit Information

  • Watt (W)

    SI unit of power. 1 W = 1 J/s

    1 W = 1 J/s = 1 N·m/s
  • Kilowatt (kW)

    1,000 watts. Common for electrical devices.

    1 kW = 1,000 W
  • Megawatt (MW)

    1,000,000 watts. Used for power plants and large generators.

    1 MW = 1,000,000 W
  • Horsepower (HP)

    Imperial unit of power. Originally based on the power of a horse.

    1 HP ≈ 745.7 W
  • dBm

    Decibel-milliwatts. Logarithmic unit relative to 1 milliwatt.

    P(dBm) = 10 · log₁₀(P/1mW)
  • BTU/hr

    British Thermal Unit per hour. Common for heating/cooling systems.

    1 BTU/hr ≈ 0.293 W