I'm assuming you want to know what level Nidoran evolves in Soul Silver. Nidoran (both male and female) evolve at level 16.
Nidoran Female and Male both evolve at Level 16.
Nidoran M will first evolve into Nidorino at level 16 (no stone required). Then you can evolve your Nidorino with the Moon Stone.
Both sexes of Nidoran evolve at level 16. Males evolve into Nidorino and females evolve into Nidorina.
Are you talking about female or male nidoran? In what Pokemon they evolve, it depends on what nidoran you catch(since the two nidorans are different). First of all, both male and female nidoran evolves, at level 16(). Both of them evolves to Nidorin@. Euh, now comes the thing that you need to remember- when either male or female nidoran evolves, you need to give ti a moon stone to get its last evolved form- if you give it to Nidorin@, you will get either Nidoking or Nidoqueen, depending on Nidorin@'s gender.
If it is a girl, Nidoran will evolve into Nidorina at level 16, which then evolves into Nidoqueen by a moon stone. If it is a boy, Nidoran will evolve into Nidorino at level 16 which evolves itno Nidoking by moon stone.
You can catch both male and female Nidoran on Route 35 and Route 36.
you can catch it in your pokewalker in the refreshing feild ruite.
you need to cheak your pokedex to find nidorian
Pokemon Red/Blue Nidoran (male) learns 'Double Kick' at level 43 Nidoran (female) learns 'Double Kick' at level 43 Pokemon Yellow Nidoran (male) learns 'Double Kick' at level 12 Nidoran (female) learns 'Double Kick' at level 12 Pokemon Silver/Gold/Crystal Nidoran (male) learns 'Double Kick' at level 12 Nidoran (female) learns 'Double Kick' at level 12 Pokemon Ruby/Sapphire/Emerald Nidoran (male) learns 'Double Kick' at level 12 Nidoran (female) learns 'Double Kick' at level 12 Pokemon Diamond/Pearl/Platinum Nidoran (male) learns 'Double Kick' at level 9 Nidoran (female) learns 'Double Kick' at level 9
Nidoran will evolve at lv 16
Nidoran evolves when he or she reaches level 16.
Nidoran Female and Male both evolve at Level 16.
Level 12
At level 16 into Nidorina
Level 13
Nidoran evolves at Level 16.
lvl 28