This page lists the lowest possible level at which Pokémon can be obtained in Red, Green, Blue, and Yellow. Use the radio buttons above to switch between the Japanese games (RGBY) and the international games (RBY).
The table below lists the lowest levels that each Pokémon is obtainable without trading with another game (although trade-exclusive evolutions still have their lowest possible level given). Some Pokémon can be obtained at lower levels than those given here with access to trading; those levels are shown on the other version of this page.
The following locations allow Fishing: Pallet Town, Viridian City, Cerulean City, Vermilion City, Vermilion Harbor, Celadon City, Fuchsia City, Cinnabar Island, Routes 6, 10, 11, 12, 13, 17, 18, 19, 20, 21, 22, 23, 24, and 25, Safari Zone (all areas), Seafoam Islands B3F and B4F, and Cerulean Cave 1F and B1F.
Cerulean Gym also allows fishing. Its encounters are the same as Cerulean City's. In Yellow, only the Old and Good Rods work in the Gym.
| Pokémon | Games | Level | Location(s) | |||
|---|---|---|---|---|---|---|
 |
Bulbasaur | R | B | Y | 5 | Gift: Pallet Town |
| R | B | Y | 10 | Gift: Cerulean City | ||
 |
Ivysaur | R | B | Y | 16 | Evolve Bulbasaur |
 |
Venusaur | R | B | Y | 32 | Evolve Ivysaur |
 |
Charmander | R | B | Y | 5 | Gift: Pallet Town |
| R | B | Y | 10 | Gift: Route 24 | ||
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Charmeleon | R | B | Y | 16 | Evolve Charmander |
 |
Charizard | R | B | Y | 36 | Evolve Charmeleon |
 |
Squirtle | R | B | Y | 5 | Gift: Pallet Town |
| R | B | Y | 10 | Gift: Vermilion City | ||
 |
Wartortle | R | B | Y | 16 | Evolve Squirtle |
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Blastoise | R | B | Y | 36 | Evolve Wartortle |
 |
Caterpie | R | B | Y | 3 | Walking: Viridian Forest |
| R | B | Y | 3 | Walking: Route 2, Viridian Forest | ||
 |
Metapod | R | B | Y | 4 | Walking: Viridian Forest |
 |
Butterfree | R | B | Y | 10 | Evolve Metapod |
 |
Weedle | R | B | Y | 3 | Walking: Route 2, Viridian Forest |
| R | B | Y | 3 | Walking: Viridian Forest | ||
 |
Kakuna | R | B | Y | 4 | Walking: Viridian Forest |
 |
Beedrill | R | B | Y | 10 | Evolve Kakuna |
 |
Pidgey | R | B | Y | 2 | Walking: Route 1 |
 |
Pidgeotto | R | B | Y | 18 | Evolve Pidgey |
| R | B | Y | 9 | Walking: Viridian Forest | ||
 |
Pidgeot | R | B | Y | 36 | Evolve Pidgeotto |
 |
Rattata | R | B | Y | 2 | Walking: Routes 1, 2, and 22 |
| R | B | Y | 2 | Walking: Route 1 | ||
 |
Raticate | R | B | Y | 20 | Evolve Rattata |
| R | B | Y | 15 | Walking: Route 21 | ||
 |
Spearow | R | B | Y | 3 | Walking: Route 22 |
| R | B | Y | 2 | Walking: Route 22 | ||
 |
Fearow | R | B | Y | 20 | Evolve Spearow |
| R | B | Y | 19 | Walking: Route 9 | ||
 |
Ekans | R | B | Y | 6 | Walking: Route 4 |
 |
Arbok | R | B | Y | 22 | Evolve Ekans |
 |
Pikachu | R | B | Y | 3 | Walking: Viridian Forest |
| R | B | Y | 5 | Gift: Pallet Town | ||
 |
Raichu | R | B | Y | 3 | Evolve Pikachu |
 |
Sandshrew | R | B | Y | 6 | Walking: Route 4 |
| R | B | Y | 8 | Walking: Routes 3 and 4 | ||
 |
Sandslash | R | B | Y | 22 | Evolve Sandshrew |
 |
Nidoran♀ | R | B | Y | 2 | In-Game Trade: Route 5-6 Underground Path (trade a level 2 Nidoran♂) |
| R | B | Y | 2 | Walking: Route 22 | ||
 |
Nidorina | R | B | Y | 16 | Evolve Nidoran♀ |
| R | B | Y | 16 | In-Game Trade: Route 11 (trade a level 16 Nidorino) | ||
 |
Nidoqueen | R | B | Y | 16 | Evolve Nidorina |
 |
Nidoran♂ | R | B | Y | 2 | Walking: Route 22 |
| R | B | Y | 3 | Walking: Route 22 | ||
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Nidorino | R | B | Y | 16 | Evolve Nidoran♂ |
 |
Nidoking | R | B | Y | 16 | Evolve Nidorino |
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Clefairy | R | B | Y | 8 | Walking: Mt. Moon 1F Purchase: Celadon Game Corner |
| R | B | Y | 8 | Walking: Mt. Moon 1F | ||
| R | B | Y | 9 | Walking: Mt. Moon B2F | ||
 |
Clefable | R | B | Y | 8 | Evolve Clefairy |
| R | B | Y | 9 | Evolve Clefairy | ||
 |
Vulpix | R | B | Y | 15 | Walking: Route 8 |
| R | B | Y | 18 | Purchase: Celadon Game Corner | ||
 |
Ninetales | R | B | Y | 15 | Evolve Vulpix |
| R | B | Y | 18 | Evolve Vulpix | ||
 |
Jigglypuff | R | B | Y | 3 | Walking: Route 3 |
| R | B | Y | 3 | Walking: Routes 5 and 6 | ||
 |
Wigglytuff | R | B | Y | 3 | Evolve Jigglypuff |
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Zubat | R | B | Y | 6 | Walking: Mt. Moon 1F |
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Golbat | R | B | Y | 22 | Evolve Zubat |
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Oddish | R | B | Y | 12 | Walking: Routes 24 and 25 |
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Gloom | R | B | Y | 21 | Evolve Oddish |
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Vileplume | R | B | Y | 21 | Evolve Gloom |
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Paras | R | B | Y | 8 | Walking: Mt. Moon 1F |
| R | B | Y | 9 | Walking: Mt. Moon B1F | ||
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Parasect | R | B | Y | 24 | Evolve Paras |
| R | B | Y | 22 | In-Game Trade: Route 18 (trade a level 22 Tangela) | ||
 |
Venonat | R | B | Y | 22 | Walking: Safari Zone Center |
| R | B | Y | 13 | Walking: Routes 24 and 25 | ||
 |
Venomoth | R | B | Y | 31 | Evolve Venonat |
| R | B | Y | 31 | Walking: Safari Zone West | ||
| R | B | Y | 30 | Walking: Routes 14 and 15 | ||
 |
Diglett | R | B | Y | 15 | Walking: Diglett's Cave |
 |
Dugtrio | R | B | Y | 26 | Evolve Diglett |
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Meowth | R | B | Y | 10 | Walking: Routes 5 and 6 |
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Persian | R | B | Y | 28 | Evolve Meowth |
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Psyduck | R | B | Y | 15 | Fishing (Super Rod): Cerulean City, Routes 24 and 25, Safari Zone (all areas) |
| R | B | Y | 15 | Surfing: Route 6 | ||
 |
Golduck | R | B | Y | 33 | Evolve Psyduck |
| R | B | Y | 15 | Surfing: Route 6 | ||
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Mankey | R | B | Y | 10 | Walking: Routes 5 and 6 |
| R | B | Y | 3 | Walking: Route 22 | ||
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Primeape | R | B | Y | 28 | Evolve Mankey |
 |
Growlithe | R | B | Y | 15 | Walking: Route 8 |
| R | B | Y | 26 | Walking: Pokémon Mansion 1F | ||
 |
Arcanine | R | B | Y | 15 | Evolve Growlithe |
| R | B | Y | 26 | Evolve Growlithe | ||
 |
Poliwag | R | B | Y | 10 | Fishing (Good Rod): Any Fishing location |
| R | B | Y | 5 | Fishing (Super Rod): Viridian City, Route 22 | ||
 |
Poliwhirl | R | B | Y | 23 | Fishing (Super Rod): Celadon City, Route 10 |
| R | B | Y | 15 | Fishing (Super Rod): Route 22 | ||
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Poliwrath | R | B | Y | 23 | Evolve Poliwhirl |
| R | B | Y | 15 | Evolve Poliwhirl | ||
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Abra | R | B | Y | 8 | Walking: Route 24 |
| R | B | Y | 6 | Purchase: Celadon Game Corner | ||
| R | B | Y | 7 | Walking: Routes 5 and 6 | ||
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Kadabra | R | B | Y | 16 | Evolve Abra |
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Alakazam | R | B | Y | 16 | Evolve Kadabra via trading |
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Machop | R | B | Y | 15 | Walking: Rock Tunnel (all floors) |
| R | B | Y | 16 | Walking: Route 10 | ||
 |
Machoke | R | B | Y | 28 | Evolve Machop |
 |
Machamp | R | B | Y | 28 | Evolve Machoke via trading |
| R | B | Y | 16 | In-Game Trade: Route 5-6 Underground Path (trade a level 16 Cubone; you cannot stop Machoke's evolution into Machamp) | ||
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Bellsprout | R | B | Y | 12 | Walking: Routes 24 and 25 |
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Weepinbell | R | B | Y | 21 | Evolve Bellsprout |
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Victreebel | R | B | Y | 21 | Evolve Weepinbell |
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Tentacool | R | B | Y | 5 | Surfing: Routes 19, 20, and 21 Fishing (Super Rod): Routes 12, 13, 17, and 18 |
| R | B | Y | 5 | Surfing: Routes 19, 20, and 21 Fishing (Super Rod): Route 17 |
||
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Tentacruel | R | B | Y | 30 | Evolve Tentacool |
| R | B | Y | 20 | Fishing (Super Rod): Route 20 | ||
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Geodude | R | B | Y | 7 | Walking: Mt. Moon B1F |
| R | B | Y | 10 | Walking: Mt. Moon 1F and B1F | ||
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Graveler | R | B | Y | 25 | Evolve Geodude |
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Golem | R | B | Y | 25 | Evolve Graveler via trading |
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Ponyta | R | B | Y | 28 | Walking: Pokémon Mansion 1F and 2F |
| R | B | Y | 28 | Walking: Route 17 | ||
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Rapidash | R | B | Y | 40 | Evolve Ponyta |
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Slowpoke | R | B | Y | 15 | Fishing (Super Rod): Celadon City, Route 10, Safari Zone (all areas) |
| R | B | Y | 15 | Surfing: Routes 12 and 13 | ||
 |
Slowbro | R | B | Y | 23 | Fishing (Super Rod): Route 23, Cerulean Cave 1F and B1F |
| R | B | Y | 15 | Surfing: Routes 12 and 13 | ||
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Magnemite | R | B | Y | 21 | Walking: Power Plant |
| R | B | Y | 16 | Walking: Route 10 | ||
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Magneton | R | B | Y | 30 | Evolve Magnemite |
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Farfetch'd | R | B | Y | 3 | In-Game Trade: Vermilion City (trade a level 3 Spearow) |
| R | B | Y | 26 | Walking: Routes 12 and 13 | ||
 |
Doduo | R | B | Y | 18 | Walking: Route 16 |
| R | B | Y | 22 | Walking: Routes 16 and 18 | ||
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Dodrio | R | B | Y | 31 | Evolve Doduo |
| R | B | Y | 29 | Walking: Route 17 | ||
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Seel | R | B | Y | 28 | Walking: Seafoam Islands B1F In-Game Trade: Cinnabar Lab (trade a level 28 Ponyta) |
| R | B | Y | 22 | Walking: Seafoam Islands B1F | ||
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Dewgong | R | B | Y | 34 | Evolve Seel |
| R | B | Y | 26 | In-Game Trade: Cinnabar Lab (trade a level 26 Growlithe) | ||
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Grimer | R | B | Y | 30 | Walking: Pokémon Mansion 1F and 2F |
| R | B | Y | 23 | Walking: Pokémon Mansion 1F | ||
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Muk | R | B | Y | 37 | Walking: Pokémon Mansion 2F |
| R | B | Y | 37 | Walking: Pokémon Mansion 1F | ||
| R | B | Y | 28 | In-Game Trade: Cinnabar Lab (trade a level 28 Kangaskhan) | ||
 |
Shellder | R | B | Y | 15 | Fishing (Super Rod): Vermilion City & Harbor, Cinnabar Island, Routes 6, 11, 19, 20, and 21, Seafoam Islands B3F and B4F |
| R | B | Y | 10 | Fishing (Super Rod): Vermilion Harbor | ||
 |
Cloyster | R | B | Y | 15 | Evolve Shellder |
| R | B | Y | 10 | Evolve Shellder | ||
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Gastly | R | B | Y | 18 | Walking: Pokémon Tower 3F, 4F, and 5F |
| R | B | Y | 18 | Walking: Pokémon Tower 3F and 4F | ||
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Haunter | R | B | Y | 25 | Evolve Gastly Walking: Pokémon Tower 3F, 4F, and 5F |
| R | B | Y | 20 | Walking: Pokémon Tower 3F and 4F | ||
 |
Gengar | R | B | Y | 25 | Evolve Haunter via trading |
| R | B | Y | 20 | Evolve Haunter via trading | ||
 |
Onix | R | B | Y | 13 | Walking: Rock Tunnel 1F and B1F |
| R | B | Y | 14 | Walking: Rock Tunnel B1F | ||
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Drowzee | R | B | Y | 9 | Walking: Route 11 |
| R | B | Y | 15 | Walking: Route 11 | ||
 |
Hypno | R | B | Y | 26 | Evolve Drowzee |
 |
Krabby | R | B | Y | 15 | Fishing (Super Rod): Cerulean City, Vermilion City & Harbor, Fuchsia City, Routes 6, 11, 12, 13, 17, 18, 24, and 25, and Safari Zone (all areas) |
| R | B | Y | 10 | Fishing (Super Rod): Route 25 | ||
 |
Kingler | R | B | Y | 23 | Fishing (Super Rod): Route 23, Cerulean Cave 1F and B1F |
| R | B | Y | 15 | Fishing (Super Rod): Route 25 | ||
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Voltorb | R | B | Y | 14 | Walking: Route 10 |
| R | B | Y | 33 | Walking: Power Plant | ||
 |
Electrode | R | B | Y | 3 | In-Game Trade: Cinnabar Lab (trade a level 3 Raichu) |
| R | B | Y | 34 | Evolve Voltorb | ||
 |
Exeggcute | R | B | Y | 23 | Walking: Safari Zone East |
| R | B | Y | 20 | Walking: Safari Zone North | ||
 |
Exeggutor | R | B | Y | 23 | Evolve Exeggcute |
| R | B | Y | 20 | Evolve Exeggcute | ||
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Cubone | R | B | Y | 20 | Walking: Pokémon Tower 3F, 4F, and 5F |
| R | B | Y | 16 | Walking: Safari Zone North | ||
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Marowak | R | B | Y | 28 | Evolve Cubone |
| R | B | Y | 24 | Walking: Safari Zone East and West | ||
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Hitmonlee | R | B | Y | 30 | Gift: Fighting Dojo |
 |
Hitmonchan | R | B | Y | 30 | Gift: Fighting Dojo |
 |
Lickitung | R | B | Y | 23 | In-Game Trade: Route 18 (trade a level 23 Slowbro) |
| R | B | Y | 50 | Walking: Cerulean Cave B1F | ||
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Koffing | R | B | Y | 30 | Walking: Pokémon Mansion 1F and 2F |
 |
Weezing | R | B | Y | 35 | Evolve Koffing |
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Rhyhorn | R | B | Y | 25 | Walking: Safari Zone Center |
| R | B | Y | 20 | Walking: Safari Zone Center | ||
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Rhydon | R | B | Y | 42 | Evolve Rhyhorn |
| R | B | Y | 15 | In-Game Trade: Cinnabar Lab (trade a level 15 Golduck) | ||
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Chansey | R | B | Y | 23 | Walking: Safari Zone Center |
| R | B | Y | 7 | Walking: Safari Zone Center | ||
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Tangela | R | B | Y | 22 | In-Game Trade: Cinnabar Lab (trade a level 22 Venonat) |
| R | B | Y | 22 | Walking: Safari Zone Center | ||
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Kangaskhan | R | B | Y | 25 | Walking: Safari Zone East |
| R | B | Y | 28 | Walking: Safari Zone North | ||
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Horsea | R | B | Y | 15 | Fishing (Super Rod): Cinnabar Island, Routes 19, 20, and 21, Seafoam Islands B3F and B4F |
| R | B | Y | 5 | Fishing (Super Rod): Vermilion City, Route 11 | ||
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Seadra | R | B | Y | 23 | Fishing (Super Rod): Route 23, Cerulean Cave 1F and B1F |
| R | B | Y | 20 | Fishing (Super Rod): Route 13 | ||
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Goldeen | R | B | Y | 10 | Fishing (Good Rod): Any Fishing location |
| R | B | Y | 5 | Fishing (Super Rod): Celadon City, Route 6 | ||
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Seaking | R | B | Y | 23 | Fishing (Super Rod): Fuchsia City, Route 23, Cerulean Cave 1F and B1F |
| R | B | Y | 30 | Fishing (Super Rod): Cerulean City, Route 24 | ||
 |
Staryu | R | B | Y | 15 | Fishing (Super Rod): Cinnabar Island, Routes 19, 20, and 21, Seafoam Islands B3F and B4F |
| R | B | Y | 5 | Fishing (Super Rod): Pallet Town | ||
 |
Starmie | R | B | Y | 15 | Evolve Staryu |
| R | B | Y | 5 | Evolve Staryu | ||
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Mr. Mime | R | B | Y | 8 | In-Game Trade: Route 2 (trade a level 8 Abra) |
| R | B | Y | 6 | In-Game Trade: Route 2 (trade a level 6 Abra) | ||
| R | B | Y | 9 | In-Game Trade: Route 2 (trade a level 9 Clefairy) | ||
 |
Scyther | R | B | Y | 23 | Walking: Safari Zone Center |
| R | B | Y | 15 | Walking: Safari Zone East | ||
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Jynx | R | B | Y | 23 | In-Game Trade: Cerulean City (trade a level 23 Slowbro) |
 |
Electabuzz | R | B | Y | 33 | Walking: Power Plant |
 |
Magmar | R | B | Y | 34 | Walking: Pokémon Mansion 3F |
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Pinsir | R | B | Y | 20 | Purchase: Celadon Game Corner |
| R | B | Y | 15 | Walking: Safari Zone North | ||
 |
Tauros | R | B | Y | 26 | Walking: Safari Zone West |
| R | B | Y | 21 | Walking: Safari Zone East and West | ||
 |
Magikarp | R | B | Y | 5 | Purchase: Route 4 Fishing (Old Rod): Any Fishing location |
| R | B | Y | 5 | Purchase: Route 4 Fishing (Old Rod): Any Fishing location Fishing (Super Rod): Fuchsia City, Safari Zone (all areas) |
||
 |
Gyarados | R | B | Y | 20 | Evolve Magikarp |
| R | B | Y | 15 | Fishing (Super Rod): Fuchsia City | ||
 |
Lapras | R | B | Y | 15 | Gift: Silph Co. |
 |
Ditto | R | B | Y | 23 | Walking: Route 14 |
| R | B | Y | 12 | Walking: Pokémon Mansion B1F | ||
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Eevee | R | B | Y | 25 | Gift: Celadon City |
 |
Vaporeon | R | B | Y | 25 | Evolve Eevee |
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Jolteon | R | B | Y | 25 | Evolve Eevee |
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Flareon | R | B | Y | 25 | Evolve Eevee |
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Porygon | R | B | Y | 26 | Purchase: Celadon Game Corner |
| R | B | Y | 18 | Purchase: Celadon Game Corner | ||
 |
Omanyte | R | B | Y | 30 | Gift: Cinnabar Lab |
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Omastar | R | B | Y | 40 | Evolve Omanyte |
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Kabuto | R | B | Y | 30 | Gift: Cinnabar Lab |
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Kabutops | R | B | Y | 40 | Evolve Kabuto |
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Aerodactyl | R | B | Y | 30 | Gift: Cinnabar Lab |
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Snorlax | R | B | Y | 30 | Static: Routes 12 and 16 |
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Articuno | R | B | Y | 50 | Static: Seafoam Islands B4F |
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Zapdos | R | B | Y | 50 | Static: Power Plant |
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Moltres | R | B | Y | 50 | Static: Victory Road 2F |
 |
Dratini | R | B | Y | 15 | Fishing (Super Rod): Safari Zone (all areas) |
| R | B | Y | 10 | Fishing (Super Rod): Safari Zone Center | ||
 |
Dragonair | R | B | Y | 30 | Evolve Dratini |
| R | B | Y | 15 | Fishing (Super Rod): Safari Zone Center | ||
 |
Dragonite | R | B | Y | 55 | Evolve Dragonair |
 |
Mewtwo | R | B | Y | 70 | Static: Cerulean Cave B1F |
 |
Mew | R | B | Y | 5 | The only way to obtain Mew without glitches or hacking was to receive it in an event for a physical copy of Red, Blue, Yellow, Gold, Silver, or Crystal between 1996 and 2002, or for the Virtual Console rerelease of Red, Blue, and Yellow in 2016. In all known distributions, it was level 5. |
The Mew glitch can be used with the enemy Ditto method to obtain all Gen 1 Pokémon (including Mew, naturally) at level 7.
Using Growl up to 6 times during the battle against the Pokémon whose Special stat is used to generate a Pokémon will lower the encountered Pokémon's level by 1 for each use, to a minimum of 1. Therefore, it is possible to get any Pokémon at level 1 using this glitch.