📉 VOLT DROP

Wire Loss Calculator

DROP (V) 1.3 V
PERCENT -%

AI-generated estimates. No guarantee of accuracy. We assume no liability for decisions based on these results. Independent verification is recommended.

Formula

Running long lengths of electrical wire across a massive commercial building or industrial site naturally results in a loss of electrical pressure, known as voltage drop, which can severely damage sensitive motors and electronics. Our Voltage Drop Calculator is an indispensable tool for licensed electricians and electrical engineers designed to instantly ensure your wiring projects meet strict National Electrical Code (NEC) compliance. By entering the wire material (copper or aluminum), the specific American Wire Gauge (AWG) size, the total distance of the run, and the load current, the tool calculates the exact percentage of voltage lost. This is immensely beneficial for solar panel installers ensuring maximum energy transmission from the roof to the inverter, construction managers sizing massive feeder cables for heavy machinery, or DIY homeowners running power to a distant backyard shed safely and efficiently.

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AI-generated estimates. No guarantee of accuracy. We assume no liability for decisions based on these results. Independent verification is recommended.