# Keyword Analysis & Research: gauges of wire size diameters

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How do you calculate wire size?

The formula for calculating cable size for single phase circuits is wire circular mils = (conductor resistivity)(2)(amps)(one way distance in feet) / allowable voltage drop. This formula is based on Ohm's Law.

How do you measure wire gauge?

Measure nonferrous wiring with wire gauge measuring tools that specify measurements for these metals. Nonferrous metals do not contain iron. Push the wire into circular slots that appear close to the diameter. Use the gauge noted beside the slot that fits the wire snugly with no gaps.

How big is 20 gauge wire?

20 gauge: .032" .81 millimeters. Medium wire. Use with regular jewelry tools. Most base metal headpins and earwires are made from 20-gauge wire. Project uses: A good general-purpose wire for making earwires, headpins, and small wire clasps. Good for wire wrapping most glass beads, colied beads, and eye pins.

What is the diameter of 8 AWG wire?

8 AWG THHN Specifications*: Size: 8 AWG: Number of Strands: 19: Cross Section Area: 18.37 mm2: PVC Insulation Thickness (Conductor): 0.760 mm / 0.030 inches: Nylon Jacket Thickness: 0.130 mm / 0.005 inches: Outside Diameter: 5.39 mm / 0.212 inches: Weight: 0.069 lbs per ft