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 - Will the existing supply wire for my 60A subpanel be adequate for a 100A subpanel? - Home Improvement Stack Exchange electrical - Will the existing supply wire for my 60A subpanel be adequate for a 100A subpanel? - Home Improvement Stack Exchange](https://i.stack.imgur.com/KXuZC.jpg)
electrical - Will the existing supply wire for my 60A subpanel be adequate for a 100A subpanel? - Home Improvement Stack Exchange
![Wire size for 100 amp basement sub-panel | DIY Home Improvement Forum | Home electrical wiring, House wiring, Electrical projects Wire size for 100 amp basement sub-panel | DIY Home Improvement Forum | Home electrical wiring, House wiring, Electrical projects](https://i.pinimg.com/736x/85/9b/68/859b6836896a15a4c5067a68c4dbaf2c.jpg)
Wire size for 100 amp basement sub-panel | DIY Home Improvement Forum | Home electrical wiring, House wiring, Electrical projects
![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)