What level does Zubat evolve?

Zubat evolves into Golbat starting at level 16, and then Golbat evolves into Crobat when leveled up with high friendship.

Zubat is #41 in the National Pokedex, and was introduced in the Generation I Pokemon titles (Red, Blue, and Yellow) where it could be found at Mount Moon, in the Rock Tunnel, at the Seafom Islands, and on Victory Road. In Generation VI (X and Y), it can be found in the Connecting Cave.