online electronic calculator - Ohm's law and much more

AC real power calculator

Online calculator for formulas used in electronic circuit design and electrical engineering.

Basic electric calculations:

Ohm's Law, Ohm's Law with power, DC power, AC real power, LC resonant frequency, Capacitor charging/discharging, Capacitive reactance, Capacitive current + reactive power, Capacitor energy, Capacitor Δ energy, RC discharging, Inductor square pulse, Inductive reactance, Inductive current + reactive power, Inductor energy, 2 parallel resistors, 3 parallel resistors, System bandwidth

Wire and winding calculations:

Diameter ↔ cross section ↔ AWG, Wire resistance, Wire weight, Current density, Wire R thermal drift

Calculate AC real power: 230V, 4A, 0.5PF, W


Using this calculation, you can calculate the real (active) power of an AC load knowing the voltage, current and power factor (cos phi). You can also calculate the current knowing the power, voltage and power factor, calculate the voltage knowing the power, current and power factor, or calculate the power factor knowing the power, current and voltage.   P=V.I.cosφ   I=P/(V.cosφ)   V=P/(I.cosφ)   cosφ=P/(V.I)

Enter 3 values, the empty 4th one will be calculated:

Voltage: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Current: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Power factor: -0.01 +0.01 -0.1 +0.1
Power: -0.1 +0.1 -1 +1 -10 +10 -100 +100
Output metric prefix:   Automatic    User-selected
 

Some common AC voltages:

Low AC
voltage
Mains
voltage
High voltage
transmission lines
1V
1.2V
1.5V
3V
3.15V
3.5V
4V
4.7V
6V
6.3V
7.5V
9V
12V
12.6V
15V
18V
24V
36V
48V
60V
100V
110V
115V
117V
120V
125V
127V
190V
200V
208V
220V
230V
240V
277V
380V
400V
415V
440V
480V
600V
1kV
3kV
3.3kV
4.16kV
6kV
6.6kV
7.2kV
10kV
12.47kV
13.2kV
14.4kV
22kV
23.9kV
35kV
44kV
69kV
110kV
115kV
138kV
161kV
169kV
220kV
230kV
345kV
400kV
500kV
750kV
765kV
1000kV
1150kV

AC real power formula says:

• When an AC load draws 4A (four amps) current at 230V (two hundred and thirty volts) voltage, with a 0.5 (zero point five) power factor, it's real (active) power input is 460W (four hundred and sixty watts).
• If a 230V (two hundred and thirty volts) load draws 460W (four hundred and sixty watts) power and its power factor cos φ is 0.5 (zero point five), its current consumption is 4A (four amps).
• When a load runs at 4A (four amps) current at 460W (four hundred and sixty watts) power input and has 0.5 (zero point five) power factor, its working voltage is 230V (two hundred and thirty volts).
• When a 460W (four hundred and sixty watts) AC load draws 4A (four amps) current at 230V (two hundred and thirty volts), its power factor is 0.5 (zero point five).



This is a simple online calculator for formulas used in electronic engineering and design.

This online calculator is for reference only. I do not guarantee it to work correctly. You use this at your own risk only.