![]() Always double-check to make sure you are buying the correct thickness of wire or cable. Conversely, a large number in AWG equates to a very small number of mm.ĪWG sizes do not fit perfectly into mm or inches, so you may need to round up or down when safe to do so.Ĭable sizes (including AWG) refer to the size of the conductor, not the total thickness of the cable including sheathing etc.ĭo not confuse AWG (American Wire Gauge) with SWG (Standard Wire Gauge, the now largely redundant British Imperial standard which was superseded by mm.) as they are not equal. Wire Gauges run low to high - this means that the smaller a gauge number, the larger it is in mm. For audio, video, telephone, security cabling you may want to use smaller cables sizes where the voltage and current are smaller. AWG #įor AWG 23 and upwards - When using a cable to power mains voltages: (110v, 230v etc) the smallest conductor we recommend is 0.5mm. Somehow we don't see ourselves nonchalantly calculating this in our heads every time we speak with an American customer, so we've made up a conversion table which we'd like to share for your convenience. Audiophiles should always wish to minimize speaker cable resistance. In this case, it's usually best to follow the advice of the Borg 'resistance is futile'. Speaker wires with lower-gauge numbers are better at carrying. A lower-gauge number indicates a thicker wire, while a higher-gauge number indicates a thinner wire. The n gauge wire diameter dn in millimetres (mm) is equal to 0.127mm times 92 raised to the power of 36 minus gauge number n, divided by 39: dn (mm) = 0.127 mm × 92(36-n)/39 The higher the gauge, the more resistance. Speaker wires that are anywhere between 12 to 16 gauge are most commonly used for connecting speakers to an amplifier or an Audio/Video (A/V) receiver. First, enter information about your cables, amplifier, and loudspeakers on the left side of the calculator. If you want the technical formulae for converting between the two, it is as follows Here’s a guide to using this free software tool. Unfortunately, AWG does not fit comfortably in rounded mm or inches, so there will always need to be a small amount of rounding up or down depending on your need or purpose. The AWG standard was officially adopted & implemented as industry-standard sizing in 1857. What is AWG? The AWG standard was created by the Brown & Sharpe Company, a leading manufacturer of machinist technology in the late 1800s & early 1900s. Vice Versa, American buyers may be stumped when they are recommended a certain gauge of cable or wire, and don't know how to get it when confronted with mm. When buying cut to length electrical wire or electrical cable, many UK and international buyers face difficulty when confronted with AWG sizing. ![]()
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