##### Asked by: Maile Malih

asked in category: General Last Updated: 13th January, 2020# What gauge wire do I need for 12v?

12 Volt Wiring: Wire Gauge to Amps

Amps @ 13.8 Volts | LENGTH OF WIRE American Wire Gauge (AWG) | |
---|---|---|

20-35 | 12-ga. | 8-ga. |

35-50 | 10-ga. | 8-ga. |

50-65 | 10-ga. | 6 or 4-ga. |

65-85 | 10-ga. | 4-ga. |

Keeping this in view, how many amps can 14 gauge wire handle at 12 volts?

Why Wire Gauge Is Important

Wire Use | Rated Ampacity | Wire Gauge |
---|---|---|

Low-voltage lighting and lamp cords | 10 amps | 18-gauge |

Extension cords (light-duty) | 13 amps | 16-gauge |

Light fixtures, lamps, lighting circuits | 15 amps | 14-gauge |

Kitchen, bathroom, and outdoor receptacles (outlets); 120-volt air conditioners | 20 amps | 12-gauge |

Subsequently, question is, how do I know what gauge wire to use? Stranded **wire gauges** should be measured by calculating the equivalent cross sectional copper area. First, measure the bare diameter of a single strand and locate the circular mils value in the row that matches your measurement. Second, multiply the circular mils by the number of strands in the cable.

Besides, how many amps can 16 gauge wire handle at 12 volts?

Automotive Wire Amperage Capacity Chart

Recommended Length and Amperage for Automotive Wire while maintaining a 2% or less voltage drop at 12 volts | ||
---|---|---|

Automotive Wire Size | 5 Amps | 20 Amps |

16 Gauge Wire (AWG) | 11.5 ft | 2.9 ft |

14 Gauge Wire (AWG) | 18.4 ft | 4.6 ft |

12 Gauge Wire (AWG) | 29.4 ft | 7.4 ft |

What wire do you use for 12v lights?

Wire Ampacity

Size | Ampacity (A) |
---|---|

12 gauge | 30 |

14 gauge | 25 |

16 gauge | 18 |

18 gauge | 16 |