Convert Power

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How to convert Power Units.

To convert power units, from one to another, you have to multiply with the correct number.

Follow these steps:

  • Find the correct conversion variable number.
  • Then multiply by that number.

Definition of  Power:

Power is a physical quantity that describes the amount of work done (energy consumed) in any given unit of time. The symbol of power is P. In the SI system, the unit of power is the joule per second (J/s), known as the watt (W) in honour of James Watt, the eighteenth-century developer of the steam engine.

Power formula: P = dW / dt

Where: dW is the amount of work and dt is time

Convert Power BTU/hour, BTU/second, calories per second, erg per second, foot pound per second (ft•lbf/s), gigawatt (GW), horsepower (hp), kilocalorie (Calorie) per second, kilowatt (kW), megawatt (MW), milliwatt (mW), watt (joules/s) (W)

publication date: 06-12-2016

How to use Converters

Select the Unit you want to convert From (first list) and the Unit you want convert To (second list).

Insert your value to of the unit at the First text box and push the Convert button!

The result of the conversion will be appear at the Second text box.

To Flip the conversion from the units you selected push the Flip Arrows.

How to use Calculators

First fill in all the mandatory fields of the form.

Push the Calculate button and take the results.

You can have a better accuracy in your results when you fill in the additional fields, if there are any.

Most often used Conversions

Inch to Centimeter

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Millimeter to Inch

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Kilometer to Mile

Kilometer Description: A kilometre (American spelling: kilometer, symbol: km) is a unit of length equal to 1000 ...


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