A number 12 American wire gauge (which is abbreviated as #12 AWG) has a diameter of 0.0808 inches (or 2.053 millimetres), has turns of 12.38 wire per inch (or 4.87 turns of wire per centimetre), covers an area of approximately 3.31 square millimetres, has a copper resistance of 5.21 Ω per one kilometre or 1.588 Ω per 1, 000 feet and has a copper wire current rating with 60 degrees Centigrade insulation of 20.
In case of the gauges numbered five to fourteen, the wire gauge is technically the number of bare solid wires. When these wires are placed beside each other, they span one inch. Therefore, gauge number 12 is approximately 1/12th of an inch in terms of diameter. The higher the gauge number, the lesser its diameter in inches and millimetres will be.
In case of the gauges numbered five to fourteen, the wire gauge is technically the number of bare solid wires. When these wires are placed beside each other, they span one inch. Therefore, gauge number 12 is approximately 1/12th of an inch in terms of diameter. The higher the gauge number, the lesser its diameter in inches and millimetres will be.