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What Size Wire for 60 Amps at 100 Feet?

At 100 ft, the default 60 A answer still matches the zero-length platform: 6 AWG copper or 4 AWG aluminum, with termination governing before the 150 ft voltage-drop jump.
Load
60 A
Distance
100 ft
Band
Mid branch / light feeder
Defaults
Non-continuous, 75 C lugs, 86 F, 240 V single-phase

Computed Starting Point

Ampacity and voltage drop under common defaults for this amp and distance.

MaterialComputed sizeOCPDUsable ampacityGoverning constraintDefault check
Copper6 AWG60 A65 ATermination rated 75 CPasses defaults
Aluminum4 AWG60 A65 ATermination rated 75 CPasses defaults
What Size Wire for 60 Amps at 100 Feet? under common non-continuous defaults: THHN or XHHW-2 insulation, 75 C terminations, 86 F ambient, 240 V single-phase and no more than three current-carrying conductors.

What 100 ft ChangesAt 100 ft, the displayed 60 A result remains 6 AWG copper or 4 AWG aluminum and stays termination-governed under the page defaults. The useful distinction is that the next published distance, 150 ft, moves both materials larger for voltage drop.

Run the wire size calculatorCheck voltage drop alone

Zero-Length vs This Distance

If the distance-adjusted size is larger, voltage drop governed under these defaults.

CaseCopper sizeCopper constraintAluminum sizeAluminum constraint
Ampacity only (0 ft)6 AWGTermination rated 75 C4 AWGTermination rated 75 C
100 ft (this page)6 AWGTermination rated 75 C4 AWGTermination rated 75 C
Copper and aluminum sizes for 60 A with no distance entered versus 100 ft one-way.

Adjacent Distances at This Amp

Neighboring published lengths for 60 A under the same defaults.

DistanceCopper sizeAluminum sizeCopper constraint
100 ft (this page)6 AWG4 AWGTermination rated 75 C
150 ft4 AWG2 AWGVoltage drop
60 A copper and aluminum starting sizes across neighboring distance pages.

100 ft Is the 60 A Short-Run Platform

Mid branch / light feeder context for 60 A at 100 ft.

A 60 A run at 100 ft is often a garage EVSE circuit, spa, small equipment feed, pump, welder outlet, or light feeder where the user wants to know whether distance changes the usual 60 A conductor.

Under the defaults on this page, 100 ft does not move the result above the zero-length conductor. That makes this page a boundary check before the published 150 ft page, where voltage drop starts changing the 60 A answer.

What Changes This Long-Run Answer

Checks that matter for distance-governed sizing in this amp band.

  • Do not assume 100 ft has jumped

    The zero-length and 100 ft rows match under these defaults. If your measured route is closer to 150 ft, use the next distance page or the calculator.

  • Use the real one-way route

    Panel location, wall offsets, trench detours, risers and sweeps all count toward the distance input.

  • Keep 240 V and load assumptions visible

    These defaults assume 240 V single-phase and a 60 A load. A 120 V circuit or different operating current needs a separate run.

  • Check lugs before buying aluminum

    4 AWG aluminum is only useful if the equipment accepts aluminum conductors at the listed temperature and size.

60 A at 100 ft FAQs

What size wire for 60 amps at 100 feet?
Under the defaults on this page, start with 6 AWG copper or 4 AWG aluminum. The result is termination-governed, not voltage-drop governed.
Why does 100 ft match the short 60 A answer?
Voltage drop is checked, but it does not force a larger conductor under these defaults. The zero-length and 100 ft rows both land on 6 AWG copper or 4 AWG aluminum.
When should I use the 150 ft page instead?
Use the 150 ft page or the calculator when the measured one-way route is closer to 150 ft. Under these defaults, 150 ft is the first published 60 A jump.
Does this cover a 120 V 60 A run?
No. This answer uses the displayed 240 V default. A 120 V run at the same amps and distance has a different voltage-drop result.