20
Level 20.
Level 20
By leveling it up to a certain level
Lv. 20
Lvl 20.
Magikarp evolves into a Gyarados at level 20.
It should, unless you accidentally pressed "B"
If you are going to evolve a Magickarp in Pokemon Platinum you need to: 1. Go and find yourself a MagicKarp(of course if your going to evolve a MagicKarp) 2.level up that MagicKarp to lvl 20 and then it evolves.( It will learn how to use bite when it evolves). P.S I hoped this helped you!
im not sure but i think its either 13 or 20..... Magikarp evolves at level 20
lv 20 or higher i don't know, i had one and it evolved a lv 20 in platinum.but i think it can also evolve a lv 23.HOPE THIS HELPED
Magikarp evolves into Gyarados at level 20 it also learns the move ( TACKLE ) at level 15. When it evolves ( AT LEVEL 20 ) it will learn the move ( BITE ).
level 20. just wait and till ya get exp share and like a lvl 15 magikarp and have it hold it and youll shoot up in them lvls thanks! i almost gave up on my leave 19 mageiccarp! you rock! Thanks dude i had a lev12 magikarp and iwas like when da heck is it gonna evolve!