Koffing
TL;DR. Koffing is a pure poison-type Pokémon from Generation I. Base Stat Total: 340. Because it stores several kinds of toxic gases in its body, it is prone to exploding without warning.
Because it stores several kinds of toxic gases in its body, it is prone to exploding without warning.
Stat spread.
Total of 340. Higher peaks mean specialized roles, flat spreads favor versatility.
Rankings computed across all 1025 base-species Pokémon (Mega and Gigantamax forms excluded). Source: National Pokédex base stats.
Koffing in Pokémon GO.
Pokémon GO uses its own hand-tuned base stats, distinct from the main-series spread above. At a perfect 15/15/15, Koffing reaches 1,214 CP at level 40 and 1,389 CP as a best buddy.
Run the numbers: CP & HP calculator · PvP IV optimizer · Catch CP calculator
Koffing in competitive play.
Koffing is a Generation 9 LC-tier pick in Smogon singles. In Pokémon GO it ranks #1028 in the Great League.
Build around it: GO PvP IV optimizer · Team builder · Ask Dia
Movesets via Smogon, GO ranks via PvPoke. Updated 2026-06-01.
Common questions about Koffing.
Direct, sourced answers to the most-asked questions about Koffing, each computed straight from its Pokédex data.
What type is Koffing?
Koffing is a pure Poison-type Pokémon. It has a single typing, which means a simpler matchup chart but also fewer resistances.
What is Koffing weak to?
Koffing takes 2× damage from Ground, Psychic. It has no 4× weaknesses.
What is Koffing resistant to?
Koffing resists Grass, Fighting, Poison, Bug, Fairy. It has no full immunities.
How does Koffing evolve?
Koffing evolves into Weezing (Level 35) or Galarian Weezing (Level 35 in Galar (yields Galarian Weezing)).
What generation is Koffing from?
Koffing was introduced in Generation I (the Kanto region). Its Pokédex number is #0109.
What are Koffing's base stats?
Koffing has HP 40, Attack 65, Defense 95, Special Attack 60, Special Defense 45, and Speed 35. Total base stat total: 340.
What are Koffing's abilities?
Koffing can have the abilities Levitate, Neutralizing Gas, plus the Hidden Ability Stench.
Is Koffing legendary or mythical?
No. Koffing is a regular Pokémon, not classified as Legendary or Mythical.
What is Koffing's best stat?
Koffing's highest base stat is Defense at 95, which ranks 7th of 83 Poison-type Pokémon.
Is Koffing good?
Koffing has a base stat total of 340, the 719th-highest of all 1025 Pokémon species and 55th among Poison-types. That is a modest total, typical of an unevolved or utility Pokémon.
Through the generations.
Koffing as drawn across two decades of Pokémon games, plus the modern Pokémon HOME render. Hit the cry button to hear it.
In battle.
Damage multipliers when Koffing is hit by each attacking type. 4× is two stacked weaknesses, ¼× is two stacked resistances.
Koffing vs. the average Poison-type.
Each base stat measured against the mean across all 83 Poison-type Pokémon.
| Stat | Koffing | Poison avg | Difference |
|---|---|---|---|
| HP | 40 | 66 | -26 |
| Attack | 65 | 72 | -7 |
| Defense | 95 | 66 | +29 |
| Special Attack | 60 | 71 | -11 |
| Special Defense | 45 | 69 | -24 |
| Speed | 35 | 68 | -33 |
| Total | 340 | 412 | -72 |
Koffing appears in 31 games.
Every mainline release where Koffing is obtainable, has a dex entry, or is transferable. Grouped by generation.
- 1998 Blue
- 1998 Red
- 1999 Yellow
- 2000 Gold
- 2000 Silver
- 2001 Crystal
- 2003 Ruby
- 2003 Sapphire
- 2004 FireRed
- 2004 LeafGreen
- 2005 Emerald
- 2007 Diamond
- 2007 Pearl
- 2009 Platinum
- 2010 HeartGold
- 2010 SoulSilver
- 2011 Black
- 2011 White
- 2012 Black 2
- 2012 White 2
- 2013 X
- 2013 Y
- 2014 Alpha Sapphire
- 2014 Omega Ruby
- 2018 Let's Go, Eevee!
- 2018 Let's Go, Pikachu!
- 2019 Shield
- 2019 Sword
- 2023 Teal Mask DLC
- 2026 Pokémon Pokopia
- 2016 Pokémon GO
Catch Koffing in the wild.
Main-series wild-encounter locations, grouped by game. 19 games have a known habitat.
Koffing appears in 25 episodes.
From EP002 (1997-04-08) through JN040 (2020-10-09).
- EP002 Pokémon Emergency! Original 1998-09-09
- EP003 Ash Catches a Pokémon Original 1998-09-10
- EP006 Clefairy and the Moon Stone Original 1998-09-15
- EP008 The Path to the Pokémon League Original 1998-09-17
- EP014 Electric Shock Showdown Original 1998-09-25
- EP016 Pokémon Shipwreck Original 1998-09-29
- EP017 Island of the Giant Pokémon Original 1998-09-30
- EP018 Beauty and the Beach Original 2000-06-24
- EP020 The Ghost of Maiden's Peak Original 1998-10-02
- EP025 Primeape Goes Bananas Original 1998-10-09
- EP026 Pokémon Scent-sation! Original 1998-10-12
- EP028 Pokémon Fashion Flash Original 1998-10-14
+ 13 more episodes
- EP031 Dig Those Diglett! Original 1998-10-19
- HZ070 Tinkatink's Hammer Wasn't Made in a Day Horizons 2025-05-02
- EP076 All Fired Up! Original 1999-10-23
- AG006 A Poached Ego! Advanced Generation 2003-11-29
- AG083 Unfair-Weather Friends Advanced Generation 2005-06-18
- AG167 What I Did for Love! Advanced Generation 2006-11-18
- AG174 New Plot, Odd Lot! Advanced Generation 2006-11-29
- AG180 May, We Harley Drew'd Ya! Advanced Generation 2006-12-11
- DP026 Getting the Pre-Contest Titters! Diamond & Pearl 2007-09-01
- DP027 Settling a Not-So-Old Score! Diamond & Pearl 2007-09-08
- DP050 Tag! We're It...! Diamond & Pearl 2008-02-01
- BW083 Rocking the Virbank Gym!: Part 1 Black & White 2012-10-13
- JN040 A Crackling Raid Battle! Journeys 2021-03-05
TCG Pocket appearances
3 Koffing cards across TCG Pocket.
Every printed variant on iOS / Android. Tap any card for full art.
Pokémon like Koffing
Closest matches by typing, role, stats, and lore, from the same semantic search that powers the Reverse Dex.