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Kilowatt Converters

Convert kilowatts to watts, megawatts, horsepower, BTU per hour and other power units.

What this tool does

Convert kilowatts to watts, megawatts, horsepower, BTU per hour and other power units. Type an amount in kilowatts, choose the units, and the tool converts it to watts. It offers 13 power units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one from 13 options, including Kilowatt, Watt, Megawatt, Gigawatt, Horsepower (mechanical, 550 ft·lbf/s), Horsepower (electric, 746 W). Starts as Kilowatt.
  • To: Choose one of the same 13 units as "From". Starts as Watt.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from kilowatts to watts:

  • 1 kW = 1,000 W
  • 5 kW = 5,000 W
  • 10 kW = 10,000 W
  • 50 kW = 50,000 W
  • 100 kW = 100,000 W

Multiply the number of kilowatts by 1,000 to get watts. Both units are exact definitions, so 1,000 is the exact factor: 1 kW = 1,000 W.

Sources: Kilowatt: SI Brochure, 9th edition (2019, updated 2022), Table 7 (SI prefixes). Watt: SI Brochure, 9th edition (2019).

Limitations

  • Converts units of power only. Kilowatts are not kilowatt-hours; use an energy converter for those.
  • Horsepower is shown as mechanical, electric and metric. Pick the one your source uses.
  • BTU means the International Table BTU. Calories per second are thermochemical calories; kilocalories per hour are International Table.

FAQs

Q: How many horsepower is one kilowatt?
A: One kilowatt is about 1.341 mechanical horsepower or 1.360 metric horsepower.
Q: How many BTU per hour is one kilowatt?
A: One kilowatt is about 3,412 BTU per hour (International Table).
Q: Which horsepower does the page use?
A: Mechanical horsepower (hp) first, with electric and metric horsepower (PS) listed beside it.

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