3 Things to Know About 16-Gauge Extension Cord Length

25 feet is the safer length for a 16-gauge cord at 10 amps At 25 feet, voltage drop is only about 2 volts, which most tools handle without issue. The cord stays cooler and your tool runs at full power.

50 feet is the absolute maximum before voltage drop becomes noticeable At 50 feet, a 16 AWG cord loses about 4 volts on a 120V circuit—a 3.3% drop. Your tool will run slightly slower and the cord will get warmer, though it’s technically within the acceptable 5% range.

Going beyond 50 feet risks damaging your tools At 100 feet, voltage drop reaches 8 volts, which is too much for most power tools. For longer runs, step up to a thicker gauge cord.