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Watts Converter

Convert watts (W) to other units, with every conversion from 1 W listed.

Change the values and press Calculate to work out your own figures.

Enter a power, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

About valueA number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
About toThe unit you want the answer in. Swap exchanges the two units.
Result
Result
3.41214163313 BTU/h
microwatts
1,000,000 µW
milliwatts
1,000 mW
kilowatts
0.001 kW
megawatts
1 × 10⁻⁶ MW
gigawatts
1 × 10⁻⁹ GW
horsepower (mechanical, 550 ft·lbf/s)
0.0013410220896 hp
metric horsepower (PS)
0.0013596216173 PS
horsepower (electric)
0.00134048257373 hp(E)
kilocalories per hour
0.860420650096 kcal/h

1 W = 3.41214163313 BTU/h

Show the working
  1. 1 W = 3.41214163313 BTU/h
  2. 1 × 3.41214163313 = 3.41214163313 BTU/h

1 W in other units

Conversion1 W equals
Watts to btu (it) per hour3.41214163313 BTU/h
Watts to horsepower0.0013410220896 hp
Watts to kilocalories per hour0.860420650096 kcal/h
Watts to kilowatts0.001 kW
Watts to megawatts1 × 10⁻⁶ MW
Watts to microwatts1,000,000 µW
Watts to milliwatts1,000 mW

About the units

Watts (W)
Watts, a metric unit. Definition: BIPM SI Brochure.

Part of the Power ConverterReviewed