Utilize our Voltage Drop Calculator to quickly determine the voltage loss in electrical circuits. Ensure safe and efficient power delivery by calculating voltage drop for copper or aluminum conductors across various wire sizes and lengths. Avoid excessive energy waste and equipment damage.
Formula:
Formula for Voltage Drop:
VD = (K × I × L) / ACM
Where:
- VD = Voltage Drop (Volts)
- K = Resistivity Constant (25.8 for Copper, single-phase; 42.4 for Aluminum, single-phase; 22.34 for Copper, three-phase; 36.72 for Aluminum, three-phase).
- I = Current (Amperes)
- L = Length of Wire (one way, in feet)
- ACM = Cross-sectional Area of Wire (Circular Mils)