Level Evolution

Bulbasaur into Ivysaur: 16

Ivysaur into Venusaur: 32

Charmander into Charmeleon: 16

Charmeleon into Charizard: 32

Squirtle into Wartortle: 16

Wartortle into Blastoise: 32

Caterpie into Metapod: 7

Metapod into Butterfree: 10

Weedle into Kakauna: 7

Kakauna into Beedrill: 10

Pidgey into Pidgeotto: 18

Pidgeotto into Pidgeot: 36

Rattata into Raticate: 20