If you need a wire to handle a certain amount of amps you can just scroll down to the appropriate subchapter that covers the amperage you’re interested in.

The n gauge wire resistance R in ohms per kilometer (Ω/km) is equal to 1000000000 times the wire's resistivity ρ in If this AWG metric calculator doesn't provide you with the information you need, please get in touch with the technical experts of The Cable Lab who will be pleased to answer your questions or calculate the appropriate AWG/metric size for your installation. Batteries have a 12V circuit. 16 gauge wire amps at 12V are the same; 17 amps. That means that a 16 gauge wire can handle 204 watts with a 12V battery. To answer these questions, we would require these kinds of equations (don’t be alarmed; these just illustrate what kind of complex formulas we are to simplify): Formula for calculating the diameter of an AWG wire (n denotes the AWG gauge number). Formula for calculating the AWG wire gauge number n (R is the ratio of the wire’s diameter to the standard #36 AWG gauge). Formula for calculating the cross-section (Area; An) of an AWG wire (n denotes the AWG gauge number). At 120V, a 12 gauge wire can handle 3,000 watts (120V × 25A = 3,000W). Using the same electrical power calculation, you can see that the 12 gauge wire can handle up to 5,500 watts at 220V, and up to 6,000 watts at 240V. These results are for the copper wire at 75°C; the rated ampacity is 25A.Because this is only of the only 200+ amp wire sizes it can be used for heavy-duty applications, such as welding or drilling equipment. It’s also the largest battery wire gauge; you can get more than 2,000W power out of a 12V battery, for example. With this information, we can determine how many amps will an 80 gauge carry. For everybody wondering if the 8 AWG wire can handle 50 amps, here is the answer: If you’re looking for wire size for a 60 amp circuit (this can be for a 60 amp 220-volt circuit, breaker, battery output), you will need an AWG with at least 60 amp rated ampacity at 75°C. There are a lot of questions regarding the wattage as well; ie. How many watts can 12 gauge wire handle? gauge wire is probably the most common 100+ amp amperage wires on the market. It has a total diameter of 6.544 mm. That means that a 2 AWG wire has a full cross-section of 33.6 mm2.

If you’re looking for wire size for a 20 amp circuit (this can be for a 20 amp 220-volt circuit, breaker, battery output), you will need an AWG with at least 20 amp rated ampacity at 75°C. You can consult the wire ampacity chart from the 1st Chapter and see that the most appropriate wire size for 25 amps is 12 AWG wire. If you use a 14 gauge battery wire, it’s useful to know that such a wire can handle 240 watts (in the case of 12V batteries) and 480 watts (in the case of 24V batteries). Similar to the 4/0 gauge wire, the 3/0 AWG gauge wire is used for welding and for drawing the current (and power) out of large 12-volt or 24-volt batteries. A 4 gauge wire is extremely useful. You can even use a 4 AWG 3 conductor with the ground; basically, 4 gauge ground wire is a thing.If you’re looking for wire size for a 10 amp circuit (this can be for a 15 amp 120-volt circuit, breaker, battery output), you will need an AWG with at least 15 amp rated ampacity at 75°C. gauge wire, especially 9 gauge galvanized wire, is quite useful not in electrical applications but as a high tensile wire. You can consult the wire ampacity chart from the 1st Chapter and see that the most appropriate wire size for 50 amps is 8 AWG wire. 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: AWG wire can handle 14 amps. It has a rated ampacity of 14A at 75°C. That makes it very useful for a number of applications, including as: