Speaker Wire Gauge Calculator

Calculate recommended speaker wire gauge from distance and impedance. Free, instant.

How to Use Speaker Wire Gauge Calculator

1

Enter cable run distance.

2

Enter speaker impedance.

3

Get recommended wire gauge.

Frequently Asked Questions

Does wire gauge matter for short runs?

Under 25 ft at 8Ω, 16 AWG is fine. Longer runs or 4Ω speakers need thicker wire.