Joules to Kilowatts (J to KW)

Joules to Kilowatts Converter

How to Convert Joules (J) to Kilowatts (kW)

Curious about how energy in joules translates to power in kilowatts? Let's break it down!

J to kW Calculation Formula

The power P in kilowatts (kW) is equal to the energy E in joules (J) divided by the time t in seconds (s) and then divided by 1,000:

P(kW) = E(J) / (t(s) ร— 1,000)

Example Calculation

If you have an energy measurement of 10,000 J and the time is 5 seconds, the calculation would be:

P(kW) = 10,000 J / (5 s ร— 1,000) = 2 kW

Formulas for Conversion

1. DC Circuit
Power (W) = Current (A) ร— Voltage (V)
2. Single-Phase AC Circuit
Power (W) = Voltage (V) ร— Current (A) ร— Power Factor (PF)
3. Three-Phase AC Circuit

Line-to-Line (L-L):

Power (W) = 3 ร— Voltage (V) ร— Current (A) ร— PF

Line-to-Neutral (L-N):

Power (W) = 3 ร— Voltage (V) ร— Current (A) ร— PF

Energy (J)

Joules (J) represent the total energy consumed or produced. It is the product of power and time.

Time (s)

Time (seconds) is the duration for which the energy is applied. It is a crucial factor in determining the power output.

Power (kW)

Kilowatts (kW) represent the rate of energy transfer or conversion, indicating how much energy is used per unit of time.

For more information on joules and their applications, visit the Britannica page on Joules.

Joules to Kilowatts Conversion Table

Formula: kW = J / (1,000 ร— Time in seconds)

Joules [J] Kilowatts at 1s Kilowatts at 2s Kilowatts at 3s Kilowatts at 4s
1000 J 1 kW 0.5 kW 0.33 kW 0.25 kW
2000 J 2 kW 1 kW 0.67 kW 0.5 kW
3000 J 3 kW 1.5 kW 1 kW 0.75 kW
4000 J 4 kW 2 kW 1.33 kW 1 kW
5000 J 5 kW 2.5 kW 1.67 kW 1.25 kW
10000 J 10 kW 5 kW 3.33 kW 2.5 kW
20000 J 20 kW 10 kW 6.67 kW 5 kW

Author

  • Manish Kumar

    Manish holds a B.Tech in Electrical and Electronics Engineering (EEE) and an M.Tech in Power Systems, with over 10 years of experience in Metro Rail Systems, specializing in advanced rail infrastructure. He is also a NASM-certified fitness and nutrition coach with more than a decade of experience in weightlifting and fat loss coaching. With expertise in gym-based training, lifting techniques, and biomechanics, Manish combines his technical mindset with his passion for fitness.

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