Power Converter

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Watts (W)
1W
Milliwatts (mW)1,000mW
Kilowatts (kW)0.001kW
Megawatts (MW)0.000001MW
Gigawatts (GW)0.000000001GW
Mech. horsepower (hp)0.001341hp
Metric HP / PS (hp(M))0.00136hp(M)
Electrical HP (hp(E))0.00134hp(E)
Boiler HP (hp(S))0.000102hp(S)
BTU per hour (BTU/hr)3.412BTU/hr
BTU per min (BTU/min)0.0569BTU/min
Kilocalories/hr (kcal/hr)0.8604kcal/hr
Tons of refrigeration (TR)0.000284TR
Ergs per second (erg/s)10,000,000erg/s
ft-lbf per second0.7376ft·lbf/s
kW0.001
hp0.001341
BTU/hr3.412
TR0.000284

1 watts = 1 W

  • 1 watts is 1 W (watts), the SI base unit for power.
  • That is also 0.001 kW and 0.001341 mechanical HP.
  • In HVAC terms it is 3.41 BTU/hr or 0.0003 tons of refrigeration.
  • For scale, 1 W is roughly comparable to a smartphone idle screen.

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