What size wire should I use to run 100A 70 feet through an attic to a subpanel also I wish to run underground another 40
![electrical - What wire gauge do I need for a 100 Amp subpanel at the end of a 60' wire run? - Home Improvement Stack Exchange electrical - What wire gauge do I need for a 100 Amp subpanel at the end of a 60' wire run? - Home Improvement Stack Exchange](https://i.stack.imgur.com/U5S3w.png)
electrical - What wire gauge do I need for a 100 Amp subpanel at the end of a 60' wire run? - Home Improvement Stack Exchange
![Pictorial diagram for wiring a subpanel to a garage. #electrical | Electrical wiring, Home electrical wiring, House wiring Pictorial diagram for wiring a subpanel to a garage. #electrical | Electrical wiring, Home electrical wiring, House wiring](https://i.pinimg.com/474x/c4/0f/e8/c40fe8f4fc9ddc9f67fb2a21cc5fcb8b.jpg)
Pictorial diagram for wiring a subpanel to a garage. #electrical | Electrical wiring, Home electrical wiring, House wiring
![electrical - What size wire for 100 amp sub-panel from a 200amp main panel? - Home Improvement Stack Exchange electrical - What size wire for 100 amp sub-panel from a 200amp main panel? - Home Improvement Stack Exchange](https://i.stack.imgur.com/ZTOy3.jpg)