Speaker Wire Gauge Conversion - Euro/UK/American


Distinguished Member
I'm probably the only oddball here who needs to do this, but here is a convertion between the various wire gauge standards.

The first chart list AWG (American Wire Gauge) and relevant information. I used the ohms/km to find the equivalent in Euro Metric wire gauges.

The second chart shows Euro Metic wire and the nearest equivalent American wire. The '>' sign indicated the the Euro wire is greater/better than the nearest equivalent AWG.

The third chart correlates UK Imperial Standard Wire Gauge (SWG) to the nearest equivalent American Wire Gauge (AWG). Here I used wire diameters to determine equivalents.

For what it's worth.

Using Standard AWG designations -

12ga ... 0.0808" dia ... 2.05mm dia ... 5.208ohm/km
14ga ... 0.6410" dia ... 1.63mm dia ... 10.44ohm/km
16ga ... 0.0508" dia ... 1.29mm dia ... 13.17ohm/km
18ga ... 0.0403" dia ... 1.02mm dia ... 20.94ohm/km

Euro Standard Wire -

1x1.00mm2 ... 18.10ohm/km ... > 18 ga AWG
1x1.50mm2 ... 12.10ohm/km ... > 16 ga AWG
1x2.50mm2 .... 7.40ohm/km .... > 14 ga AWG
1x4.00mm2 .... 4.61ohm.km .... > 12 ga AWG

UK Imperial Standard Wire Gauge (SWG)

SWG [ga(dia)] ... AWG [ga(dia)]

12ga(.104") ..... 10ga(.1019")
14ga(.080") ..... 12ga(.0808")
16ga(.064") ..... 14ga(.0641")
17ga(.056") ..... 15ga(.0570"), 16ga(.0508")
18ga(.048") ..... 17ga(.0453"), 18ga(.0403")

Conclusion - for most users the ideal wire is 14ga AWG, 16ga SWG, 2.50mm2 Euro.

I've saved this to my computer, so when it comes up in discussions, I can refer to it and quote the correct and relevant UK/Euro wire. Keep in mind that in the USA, wire is only available in even numbered gauges.


The latest video from AVForums

Star Wars Andor, Woman King, more Star Trek 4K, Rings of Power & the latest TV, movies & 4K releases
Subscribe to our YouTube channel
Support AVForums with Patreon

Top Bottom