Voltage Drop Calculator
Calculate voltage drop in electrical circuits quickly and accurately. Ensure your electrical systems operate efficiently with proper voltage levels.
Circuit Parameters
Results
Voltage Drop
5.23 V
Voltage Drop Percentage
4.36%
Voltage at Load
114.77 V
Power Loss
104.6 W
Recommendation
Voltage drop is within acceptable limits (less than 5%). Your circuit should operate efficiently.
Calculation Details
Formula Used
VD = (2 × K × I × L) / CM
Where:
- VD = Voltage Drop (Volts)
- K = Resistivity of conductor material
- I = Current (Amperes)
- L = One-way length of circuit (feet)
- CM = Cross-sectional area of conductor (circular mils)
Voltage Comparison
Source Voltage
120 V
Voltage at Load
114.77 V
Wire Size Comparison
This chart shows how different wire sizes affect voltage drop in your circuit.