Caterpie evolves into Metapod starting at level 7, and then Metapod evolves into Butterfree starting at level 10.
Caterpie is #10 in the National Pokedex, and was introduced in the Generation I Pokemon titles (Red, Blue, and Yellow) where it could be found in Viridian Forest, in Red and Blue on Route 25 and in Blue only on Routes 2 and 24. In Generation VI (X and Y), it can be caught in Santalune Forest, and in Y only, on Route 2.
____
Of course if you want it to learn more moves, it never hurts to not allow it to evolve for a bit!
Chat with our AI personalities
First it evolves into metapod at level seven, then it evolves into butterfree at level ten.
Caterpie will evolve into Metapod starting at level 7, and Metapod will evolve into Butterfree starting at level 10.
Caterpie evolves into Metapod, starting at level 7, then Metapod can evolve into Butterfree at level 10.
Caterpie can evolve into metapod starting at level 7. The evolution conditions for caterpie are not different in Pokemon Yellow from other pokemon games.
Caterpie evolves into a Metapod, Which then turns into a Butterfree at level 10.
it evolves at level 7 or 8