Determines wire size to meet specific voltage drop limits or calculates voltage drop for a specific conductor run. When sizing conductors, calculations limits wire size to voltage drop and NEC …

This free voltage drop calculator estimates the voltage drop of an electrical circuit based on the wire size, distance, and anticipated load current.

This calculator helps you determine the voltage drop in a circuit and select appropriate wire sizes to maintain voltage within acceptable limits per NEC and CEC requirements.

Free voltage drop calculator for single-phase and three-phase circuits. Instantly compute wire size, % voltage drop, and power loss. NEC-compliant and engineer-tested.

Free voltage drop calculator. Calculate voltage drop, percentage drop, and wire resistance based on wire size (AWG), material (Copper/Aluminum), distance, and current.

Free online Voltage Drop Calculator for single phase AC, three phase AC, DC cables and resistors. Calculate voltage drop, resistance and power loss instantly.

Use our free voltage drop calculator to determine voltage loss in electrical circuits based on wire size, current, and distance. Supports NEC data and custom inputs.

The Voltage Drop Calculator will calculate the voltage drop across a circuit for long wire runs based on voltage, current, phases, conductor, wire size, and circuit distance.

The voltage drop V in volts (V) is equal to the wire current I in amps (A) times 2 times one way wire length L in feet (ft) times the wire resistance per 1000 feet R in ohms (Ω/kft) divided by …

Calculate voltage drop, wire size, and ensure NEC compliance for single-phase, three-phase, and DC electrical systems. Free professional tool trusted by electricians and engineers worldwide.