In this case, it's usually best to follow the advice of the borg resistance is futile. Choosing wire sizes there are a few exceptions, but here are safe gauges to use (in awg):

A compilation for AWG to Metric Size conversion/cross

Take the measuring tape and hold it on the top of the speaker driver.

How to measure speaker wire size. Measure the string, and then add a few extra feet (to provide some slack for easier connection to your gear). To choose the right speaker wire, we need to know the length and how much current they will have to transfer so that we can select the correct gauge. There are a lot of ways to measure a speaker wire size.

American wire gauge (awg) is a standardized system established in 1857 used to measure the diameter of wires. Determine the size of your speaker’s baffle cutout diameter. You can use a common wire stripper, however, to determine the diameter or the gauge size of the wires.

12 for shorter speaker wire runs: Get the correct sized quick disconnect crimp terminals needed. Your stereo or amplifier’s power output (usually listed as watts “rms”) the ohm rating (“impedance”) of your speakers;

American wire gauge (awg) is a system of numerical designations of wire diameters where the thicker and less resistive the wire is, the lower the gauge number. This nominal impedance rating (usually 4, 8, or 16 ohms) is an estimate of the minimum impedance for typical audio ranges. To measure the impedance of a speaker you’ll need a multimeter (test meter with multiple functions) or a dedicated ohm (resistance) meter.

Switch on the meter and set it to measure ohms on the lowest range. American wire gauge (awg), also referred to as just “gauge”, is the system used mostly in north america to classify speaker wire by the size of the diameter, or size of the speaker wire. You can use the standard wire gauge, also known as the imperial wire gauge or as the british standard gauge, or the american wire gauge.

The n gauge wire diameter d n in millimeters (mm) is equal to 0.127mm times 92 raised to the power of 36 minus gauge number n, divided by 39: The gauge size of wire originated in the 13th century. Audiophiles should always wish to minimize speaker cable resistance.

In the mobile audio world, it helps to think about the size of car speakers as more of a category than an actual size. A speaker wire's resistance needs to be at least 5% of its speaker's opposition to the alternating current, in order for it to have reliable performance. Wire was drawn through a large hole, then a smaller hole, then a smaller hole, etc.

Most speaker manufacturers list an impedance rating on the speaker label or the packaging. Read on to learn why. (yes, 10awg would be even thicker, but then you start running into other problems with.

Switch on the meter and set it to measure ohms on the lowest range. However, if you’d like a simplified answer here’s a chart to fit the needs of most people. The n gauge wire diameter d n in inches (in) is equal to 0.005in times 92 raised to the power of 36 minus gauge number n, divided by 39:

Flip your speaker over and inspect the underside of the unit. Strip the speaker wire (about 3/8″ to 1/2″ is fine) and twist the ends tightly to keep the strands in place. To measure the impedance of a speaker you’ll need a multimeter or a dedicated resistance meter.

Step 1, check the label for a nominal impedance rating. This usually occurs at a frequency between 250 and 400 hz. How to connect speaker wire to car or home speakers using crimp terminals (quick disconnects):

12 for longer speaker wire runs: You not only can strip wires of a specific size but can also determine the gauge size of the wire. Touch the test probe leads firmly against clean, bare metal on the speaker terminals with at least one speaker wire removed to avoid a false measurement.

Measure the diameter of wires with precision scientific vernier calipers by enclosing the caliper jaws on either side of a wire and checking the scale for a measurement. To get the appropriate gauge always measure the distance of your speaker from your main unit or amplifier. If unsure what size, measure the speaker wire tabs with a ruler.

Hold the hook of the measuring tape over the edge where the speaker. To figure out how much speaker wire you need, run a string from your receiver or amplifier location to each of the speaker locations. This is why the thinest wire has the largest number.

Specifically for speaker wire, the most common gauges available are 12, 14, 16 and 18. I would go with 12 to 16 awg as suggested. Figuring out car speaker sizes can be a little confusing.

Use a conversion chart, such as the one provided under resources, to find the wire gauge based on diameter. Originaly the gauge represented the number of holes the wire had to be drawn through. The size of speaker wire you need is based on 3 things you can easily check:

The length of the speaker wire also affects the performance of your speakers. The wire size most commonly used in car audio systems ranges from 4awg to 22 awg. Simplified speaker wire size chart

At crutchfield, we help customers who have questions about car speaker size all the time. Most wire strippers have a series of round holes labeled with awg sizes where you can insert the wires. Determine the gauge of the outdoor speaker wire needed.

The actual impedance is fairly close to this value within this.