Conversion using the Amps to KW Formula
How to Calculate KW from amps and volts using DC line current.
The Real Power P in Kilowatts Kw is calculated as the current I in amps A, times the voltage in volts V divided by 1000. Plug these values into the formula:
For Example, let's find the power in kilowatts for a circuit with 8 amps of current at 100 volts.
How to Calculate KW from Amps, volts and Power factor pf using AC Single Phase current.
The Real Power P in Kilowatts kw is calculated as the Power factor in pf times the phase current I in amps A, times the RMS voltage in volts v divided by 1000. Plug these values into the formula:
For Example, If the Voltage consumption is 240V with a phase current of 8A and a power factor of 0.8 the Real Power is KW.
How to Calculate KW from amps, volts and power factor pf using AC 3-phase current for Line-to-Line Voltage.
The Real Power P in Kilowatts Kw is as the square root of 3 times the Power factor in Pf times the phase current I amps A, times the Line-to-Line RMS Voltage VL-L in Volts v divided by 1000. Plug these values into the formula:
For Example, If the RMS Line-line Voltage consumption is 440V with a 3-phase the phase current is 5A, and a Power factor of 0.8 the Real Power is KW.
How to Calculate KW from amps, volts and Power factor pf using AC 3-phase current for Line-to-Neutral Voltage.
The Real Power P in Kilowatts Kw is as the 3 times the Power factor in Pf times the phase current I amps A, times the Line-to-neutral RMS Voltage VL-N in Volts v divided by 1000. Plug these values into the formula:
For Example, If the RMS Line-Neutral Voltage consumption is 440V with a 3-phase the phase current is 10A, and a Power factor of 0.8 the Real Power is KW.
Suggested Reading
- Milliamp-hour (mAh) to Watt-hour Conversion Calculator
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How to use Amps to KW Calculator?
To use the above "Amps to KW Conversion Calculator" follow the below steps:
1. Select Phase Type: Choose between DC Line, Single Phase Line, or 3 Phase Line by choosing the appropriate option from the dropdown.
2. Enter Current: Input the Current in Amps value in the specified input box. You can enter the value in milliamps mA, Amps A, Kiloamps kA, or Megaamps MA by choosing the appropriate option from the dropdown.
3. Enter Supply Voltage: Input the supply voltage or Load voltage value in the specified input box. You can enter the value in millivolts mV, Volts V, Kilovolts kV & MegaVolt MV by choosing the appropriate option from the dropdown.
4. Enter Power Factor: Input the power factor of the Load in the provided input box. The power factor is a unitless value typically between 0 and 1.
5. Reset: Click the Reset If you want to reset the calculator to perform another conversion, you can click the Reset button, and all input fields will be cleared.
6. Calculate: Click the Calculate button to obtain the results. The calculated results will be displayed in the Results: section.
7. Swap: If you want to Swap the calculated to Exchange conversion, you can click the Swap button, and Calculate will be Exchange.
8. Result: The calculated "Result" will be displayed in the respective Result In output KW output field.
Amps to KW conversion application
- Amps (A): Enter the current in amperes.
- Voltage (V): Enter the system voltage in volts.
- Power Factor (PF): For AC systems (default value is 1 for resistive loads).
- System Type: Select Single-phase or Three-phase.
- Voltage Type (for 3-phase AC): Choose Line-to-Line or Line-to-Neutral.
- Real-Time Calculations: The app provides instant results as users enter values.
Amps To KW Conversion Chart
Below is a table assuming PF = 1 for simplicity, with varying current values:
Input | Output | |||
---|---|---|---|---|
Current (Amps) | Voltage (Volts) | DC (KW) | Single Phase (KW) | Three Phase (KW) |
1 | 120 | 0.12 | 0.12 | 0.21 |
5 | 120 | 0.6 | 0.6 | 1.04 |
10 | 120 | 1.2 | 1.2 | 2.08 |
20 | 120 | 2.4 | 2.4 | 4.15 |
1 | 220 | 0.22 | 0.22 | 0.38 |
5 | 220 | 1.1 | 1.1 | 1.9 |
10 | 220 | 2.2 | 2.2 | 3.81 |
20 | 220 | 4.4 | 4.4 | 7.62 |
Typical power factor values
Do not use typical power factor values for accurate calculations.
Equipment and appliances | cos θ | tan θ | |||
---|---|---|---|---|---|
Motor | Common induction motor | loaded at | 0 % | 0.17 | 5.80 |
25% | 0.55 | 1.52 | |||
50 % | 0.73 | 0.94 | |||
75 % | 0.80 | 0.75 | |||
100 % | 0.85 | 0.62 | |||
Lamps | Incandescent lamps | 1.0 | 0 | ||
Fluorescent lamps (uncompensated) | 0.5 | 1.73 | |||
Fluorescent lamps (compensated) | 0.93 | 0.39 | |||
Discharge lamps | 0.4 to 0.6 | 2.29 to 1.33 | |||
Ovens | Ovens using resistance elements | 1.0 | 0 | ||
Induction heating ovens (compensated) | 0.85 | 0.62 | |||
Dielectric type heating ovens | 0.85 | 0.62 | |||
Welding | Resistance-type soldering machines | 0.8 to 0.9 | 0.75 to 0.48 | ||
Fixed 1-phase arc-welding set | 0.5 | 1.73 | |||
Arc-welding motor-generating set | 0.7 to 0.9 | 1.02 to 0.48 | |||
Arc-welding transformer-rectifier set | 0.7 to 0.8 | 1.02 to 0.75 | |||
Arc furnace | 0.8 | 0.75 | |||
Power Factor Value Conversion Table |
Frequently Asked Questions - FAQs for Amps to KW Calculator
0v, or zero volts, a complete lack of voltage. Zero-voltage switching; see Switched-mode power supply.
1 ampere of current represents 1 coulomb of electrical charge (6.24 x 1018 charge carriers) moving past a specific point in 1 second.
How to Convert Watts, Amps, & Volts.
Watts = Amps x Volts
Examples: 30 Amps x 220 Volts = 6600 Watts. 10 Amps x 240 Volts = 2400 Watts.
Typically, we assign the logic value 1 to the higher output voltage and 0 to the lower output voltage termites. Circuits built with real components actually operate with continuous voltages and current flow.
A convert amps to kilowatts, the modified formula shows us that the power (kilowatts) is equal to the current (A) multiplied by the voltage (V), which is then divided by 1,000.