Voltage Drop Calculator

Voltage Drop Formula:

Single-Phase: Voltage Drop(VD)= 2× I× R× LConductor Wire Size(CM) 

Resistance(R)=12.9 for copper and 21.2 for Aluminum

Enter the unknown value as ‘ x ‘

Enter current(I)= Amp

Enter Length of Circuit(L)= m

Enter Conductor Wire Size(CM)= m

Enter Voltage Drop(VD)= V

x = (For Copper)
x = (For Aluminium)


Voltage Drop Calculator is a free online tool that displays the voltage drop in the circuit. BYJU’S online voltage drop calculator tool makes the calculation faster, and it displays the amount of voltage drop in a fraction of seconds.

How to Use the Voltage Drop Calculator?

The procedure to use the voltage drop calculator is as follows:

Step 1: Enter the current, circuit length, conductor size, and x for the unknown in the respective input field

Step 2: Now click the button “Calculate x” to get the result

Step 3: Finally, the voltage drop will be displayed in the output field

What is Meant by Voltage Drop?

In Physics, the voltage drop is defined as the amount of voltage drop/loss occurs as a part of the circuit or through all the circuit due to the impedance. Usually, the voltage drop happens due to the increased resistance in the circuit. Other causes of voltage drop may be due to extra components, connections or the high-resistance conductors, increased load and so on. 


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