Grookey in Pokémon GO

Type	Grass
Pokédex number	#810
Base Attack / Defense / Stamina	122 / 91 / 137
Max CP, level 40 / 50 / 51	1,086 / 1,227 / 1,242
Max HP, level 50	127
Buddy distance	3 km per Candy
Second Charged Attack	10,000 Stardust and 25 Candy
Height / weight	0.3 m / 5 kg

Grookey evolution

Pokémon GO has no evolution levels: a Pokémon evolves when you spend Candy on it (sometimes with an item or a task), at any level.

Grookey evolves into Thwackey for 25 Grookey Candy.

Family: Grookey · Thwackey · Rillaboom

Grookey CP by level

Combat Power with perfect stats (15/15/15) and with 10/10/10. Players find that raid, egg and research catches never have a stat below 10; that floor is their measurement, not a number in the game data.

Level	CP 15/15/15	CP 10/10/10	HP 15/15/15	Note
15	465	430	78	research rewards are at most level 15 (game master)
20	620	574	90	eggs hatch at most level 20 (game master); raid catches are level 20 (players’ measurement)
25	775	717	101	raid catches in weather that boosts the boss’s type are level 25 (players’ measurement)
30	931	861	111	wild Pokémon are at most level 30 (game master)
35	1,008	932	115
40	1,086	1,004	120
45	1,155	1,069	123
50	1,227	1,135	127
51	1,242	1,149	128	best buddy bonus on a level 50 Pokémon

Grookey best moveset

Ranked by damage per second over one cycle of fast attacks and one charged attack. Assumptions: Grookey at level 40 with 15/15/15, a target with 180 Defense taking neutral damage, no weather boost, and the energy Grookey gains from being hit left out.

Fast attack	Charged attack	Damage per second
Razor Leaf	Grass Knot	7.0
Scratch	Grass Knot	6.6
Razor Leaf	Energy Ball	6.1
Scratch	Energy Ball	5.6

Fast attacks

Move	Type	Power	Energy	Time	Power / s
Razor Leaf	Grass	13	7	1 s	13.0	same type, ×1.2
Scratch	Normal	6	4	0.5 s	12.0

Charged attacks

Move	Type	Power	Energy cost	Time	Power / s
Energy Ball	Grass	90	50	4 s	22.5	same type, ×1.2
Grass Knot	Grass	90	50	2.5 s	36.0	same type, ×1.2

Grookey weaknesses and resistances

Damage multipliers for each attack type against Grass. Pokémon GO uses ×1.6 for super effective and ×0.625 for not very effective, multiplied for two types.

Attack type	Damage
Bug	×1.6
Fire	×1.6
Flying	×1.6
Ice	×1.6
Poison	×1.6
Electric	×0.625
Grass	×0.625
Ground	×0.625
Water	×0.625

Grookey CP calculator

Level Attack IV Defense IV HP IV

CP 1,086 · HP 120

← #809 Melmetal  ·  #811 Thwackey →  ·  All Pokémon in Pokémon GO

Sources: stats, moves, evolution costs and the CP multiplier for each level are from the Pokémon GO game master as published by PokeMiners (commit 8e227be, data of 28 August 2026). Which Pokémon are in the game: pogoapi.net (list of 31 January 2026). CP = ⌊(Attack+IV) × √(Defense+IV) × √(Stamina+IV) × CPM² / 10⌋, checked against pogoapi.net’s max CP table for 888 Pokémon. Raid catch levels and the 10/10/10 floor are players’ measurements; they are not in the game data. Pokémon and Pokémon GO are trademarks of their owners; this page is not affiliated with or endorsed by Niantic, Scopely, Nintendo, Creatures, GAME FREAK or The Pokémon Company.