Introduction

A Power Conversion Calculator is a tool used to convert measurements of power from one unit to another. Power is the rate at which energy is transferred or converted, and it has various units depending on the system of measurement being used. Here are some common units of power and their conversions.

Various power units

1. joule/second: The joule-second, denoted as J⋅s, serves as the unit of action and angular momentum within the International System of Units (SI). It is derived from the product of the joule (J), an SI-derived unit, and the second (s), an SI base unit. Additionally, it plays a significant role in quantum mechanics, being part of the definition for Planck's constant.

2. foot-pound-force/second: The foot-pound-force (denoted as ft⋅lbf) is a measure of work or energy used primarily in the United States within the customary and imperial systems of measurement. It quantifies the work done when a force of one pound-force is exerted over a distance of one foot.

3. horsepower: Horsepower (hp) is a measure of power that indicates the rate of doing work, often associated with the performance of engines and motors. Multiple variations of horsepower exist, with two prevalent definitions: the imperial horsepower, marked as "hp" or "bhp," which equates to around 745.7 watts, and the metric horsepower, labeled as "cv" or "PS," which is roughly 735.5 watts.

4. Volt-ampere: The volt-ampere, denoted as VA, represents the unit of apparent power in electrical circuits. It is calculated by multiplying the root mean square (RMS) voltage in volts by the RMS current in amperes. This unit is predominantly utilized for analyzing alternating current (AC) systems. In the context of direct current (DC) systems, the product of volts and amperes corresponds to real power, which is measured in watts.

5. Watt: Watt(symbol: W), within the International System of Units (SI), is the unit for measuring power or radiant flux. It is defined as 1 joule per second, or equivalently as 1 kilogram meter squared per second cubed (1 kg⋅m²⋅s⁻³). This unit is employed to measure the rate at which energy is transferred or converted.

Conversion

1. Watt:

1 exawatt (EW) = 1,000 petawatt (PW) = 1,000,000 terawatt (TW) = 1,000,000,000 gigawatt (GW)

1 gigawatt(GW) = 1000 megawatt (MW) = 1000 kilowatts (kW) = 1,000,000,000 watt (W)

1 watt (W) = 1,000 milliwatt (mW) = 1,000,000 microwatt (µW) = 1000,000,000 nanowatt (nW) = 1,000,000,000,000 picowatt (pW)

2. Watt to Joule/Second:

1 watt (W) = 1 joule/second (J/s)

3. Watt to volt-ampere:

1 watt (W) = 1 volt-ampere (VA)

4. kilovolt-ampere to volt-ampere:

1 kilovolt-ampere (kVA) = 1,000 volt-ampere (VA)

5. foot-pound-force/second to joule/second

1 foot-pound-force/second  (ft lbf/s)= 1.356 joule/second  (J/s)

6. horsepower to watts

1 horsepower (hp) =745.7 watts (W)