Convert kilowatt second to j

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Kilowatt-Second

A kilowatt-second (symbol: kW·s) is a unit of energy equal to 1,000 joules, equivalent to the energy delivered by one kilowatt of power sustained for one second. It is numerically equal to one kilojoule and is occasionally used in electrical engineering and physics for convenience. The unit makes the relationship between power and time explicit in energy calculations. 


Joule

The joule (/dʒaʊ,dʒuːljawl, jool; symbol: J) is a derived unit of energy in the International System of Units. It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one metre (1 newton metre or N⋅m). It is also the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second. It is named after the English physicist James Prescott Joule (1818–1889). 


Kilowatt-Second to Joule conversion table
Kilowatt-SecondJouleJouleKilowatt-Second
1100010.001
2200020.002
3300030.003
5500050.005
1010000100.01
2020000200.02
2525000250.025
5050000500.05
1001000001000.1
2502500002500.25
5005000005000.5
10001E+0610001
How to convert Kilowatt-Second to Joule

1 kW*s = 1000 J. To convert any value, multiply it by 1000. For example, 25 kW*s = 25000 J.

Frequently asked questions
How many J are there in one kW*s?
One kW*s is equal to 1000 J.
How do you convert Kilowatt-Second to Joule?
Multiply the value in Kilowatt-Second by 1000 to get the result in Joule.
How much is 25 kW*s in J?
25 kW*s is equal to 25000 J.
How do you convert Joule back to Kilowatt-Second?
Divide by the same factor: multiply the value in Joule by 0.001 to get Kilowatt-Second.

Most common energy unit conversions