When does Pikachu evolve?

Answer 1

Pikachu doesn't evolve through leveling up. Pikachu evolves into Raichu with the use of a Thunder Stone.

Note: in Pokemon Yellow, your starter Pikachu will refuse to evolve unless traded to another game.

Other facts:

Pikachu is number 25 in the National Pokedex, and evolves from Pichu when you have high friendship.
Give it a Thunder Stone.
trade a yellow shard to the treasure man near mossdeep city. then use the thunderstone he gives you on pikahchu. use it on him, not give it to him.

Answer 2

Pikachu evolves at any level because it evolves once you use a Thunderstone on it.

Answer 3

Pikachu will only evolve when you use a ThunderStone on it.

Answer 4

Pikachu will only evolve if you use a ThunderStone.

Answer 5

In Pokemon Yellow, no, due to it following the anime, but it can evolve in the other games.

Answer 6

You need to give it a Thunderstone to evolve it. It can be evolved at any level.

Answer 7

Use a thunderstone to evolve it.