How to evolve every Pokémon in Red, Blue and Yellow

Generation 1

BulbasaurGrassPoison

• Level 16
  IvysaurGrassPoison

  • Level 32
    VenusaurGrassPoison

CharmanderFire

• Level 16
  CharmeleonFire

  • Level 36
    CharizardFireFlying

SquirtleWater

• Level 16
  WartortleWater

  • Level 36
    BlastoiseWater

CaterpieBug

• Level 7
  MetapodBug

  • Level 10
    ButterfreeBugFlying

WeedleBugPoison

• Level 7
  KakunaBugPoison

  • Level 10
    BeedrillBugPoison

PidgeyNormalFlying

• Level 18
  PidgeottoNormalFlying

  • Level 36
    PidgeotNormalFlying

RattataNormal

• Level 20
  RaticateNormal

SpearowNormalFlying

• Level 20
  FearowNormalFlying

EkansPoison

• Level 22
  ArbokPoison

SandshrewGround

• Level 22
  SandslashGround

Nidoran♀Poison

• Level 16
  NidorinaPoison

  • Use Moon Stone
    NidoqueenPoisonGround

Nidoran♂Poison

• Level 16
  NidorinoPoison

  • Use Moon Stone
    NidokingPoisonGround

VulpixFire

• Use Fire Stone
  NinetalesFire

ZubatPoisonFlying

• Level 22
  GolbatPoisonFlying

OddishGrassPoison

• Level 21
  GloomGrassPoison

  • Use Leaf Stone
    VileplumeGrassPoison

ParasBugGrass

• Level 24
  ParasectBugGrass

VenonatBugPoison

• Level 31
  VenomothBugPoison

DiglettGround

• Level 26
  DugtrioGround

MeowthNormal

• Level 28
  PersianNormal

PsyduckWater

• Level 33
  GolduckWater

MankeyFighting

• Level 28
  PrimeapeFighting

GrowlitheFire

• Use Fire Stone
  ArcanineFire

PoliwagWater

• Level 25
  PoliwhirlWater

  • Use Water Stone
    PoliwrathWaterFighting

AbraPsychic

• Level 16
  KadabraPsychic

  • Trade
    AlakazamPsychic

MachopFighting

• Level 28
  MachokeFighting

  • Trade
    MachampFighting

BellsproutGrassPoison

• Level 21
  WeepinbellGrassPoison

  • Use Leaf Stone
    VictreebelGrassPoison

TentacoolWaterPoison

• Level 30
  TentacruelWaterPoison

GeodudeRockGround

• Level 25
  GravelerRockGround

  • Trade
    GolemRockGround

PonytaFire

• Level 40
  RapidashFire

SlowpokeWaterPsychic

• Level 37
  SlowbroWaterPsychic

MagnemiteElectricSteel

• Level 30
  MagnetonElectricSteel

DoduoNormalFlying

• Level 31
  DodrioNormalFlying

SeelWater

• Level 34
  DewgongWaterIce

GrimerPoison

• Level 38
  MukPoison

ShellderWater

• Use Water Stone
  CloysterWaterIce

GastlyGhostPoison

• Level 25
  HaunterGhostPoison

  • Trade
    GengarGhostPoison

DrowzeePsychic

• Level 26
  HypnoPsychic

KrabbyWater

• Level 28
  KinglerWater

VoltorbElectric

• Level 30
  ElectrodeElectric

ExeggcuteGrassPsychic

• Use Leaf Stone
  ExeggutorGrassPsychic

CuboneGround

• Level 28
  MarowakGround

KoffingPoison

• Level 35
  WeezingPoison

RhyhornGroundRock

• Level 42
  RhydonGroundRock

HorseaWater

• Level 32
  SeadraWater

GoldeenWater

• Level 33
  SeakingWater

StaryuWater

• Use Water Stone
  StarmieWaterPsychic

MagikarpWater

• Level 20
  GyaradosWaterFlying

EeveeNormal

• Use Water Stone
  VaporeonWater
• Use Thunder Stone
  JolteonElectric
• Use Fire Stone
  FlareonFire

OmanyteRockWater

• Level 40
  OmastarRockWater

KabutoRockWater

• Level 40
  KabutopsRockWater

DratiniDragon

• Level 30
  DragonairDragon

  • Level 55
    DragoniteDragonFlying

From the game's own evolution data. A listed Pokémon may need a transfer or DLC to reach in this game. Other games