Credit hours are close to 120 (on a semester system), however, probably half or a little more is transferable. GPA at my community college was ~3.1. Right now i'm at UCSC, it's a ~2.7 (had a rough first quarter, circumstances out of my control that lead to poor performance.) I've made a steep upward trend in both institutions attended, and I have explained my situations that inferred a lower GPA. My math, physics, chemistry, and upper division engineering courses transfer over. I also have tons of ECs, leadership positions, ROTC, ect..
If you have any other questions, please feel free to ask!
Thanks xoxoviviannnn! Congrats to you too!