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Games Updated May 18, 2026 12 min read

The 13 Biggest Pokemon Ranked by Height and Weight

The 13 biggest Pokemon ranked by official Pokedex height and weight across all generations. From Eternatus at 65 feet to Wailord and Mega Rayquaza.

The 13 Biggest Pokemon Ranked by Height and Weight cover image

Quick Answer Eternatus is the biggest Pokemon by height at 65 feet 7 inches (20 meters), while Cosmoem is the heaviest relative to its size at 2,204.4 lbs.

Eternatus towers at 65 feet 7 inches (20 meters), but it’s not the only giant in the Pokedex. We tested every generation’s size data against the official Pokedex entries on Sword, Shield, Scarlet, and Violet to build this ranking. The tallest, heaviest, and longest Pokemon rarely overlap, and the numbers below explain why.

  • Eternatus is the tallest Pokémon at 20 meters (65 feet 7 inches) and is also one of the heaviest at approximately 1,763 pounds.
  • Wailord is 14.5 meters long but weighs under 900 pounds, making it surprisingly light for its size because its body contains a significant amount of air.
  • Groudon, despite its reputation as one of the biggest Pokémon, is actually only 11 feet tall — far smaller than most people expect.
  • Stakataka has a base defense stat of 211, making it one of the most defensively powerful Pokémon in the game despite moving at a speed stat of just 13.
  • Giratina is the only Pokémon with a Ghost/Dragon dual typing and can only take its Origin Forme while inside the Distortion World.

#How Big Are the Biggest Pokemon?

Most fans assume that a “pocket monster” franchise is full of skyscraper-scale creatures, but the official Pokedex tells a more uneven story. Many of the species treated as “giant” in the anime are actually mid-sized in print, and a handful of overlooked species dwarf the famous mascots.

Biggest Pokemon - Eternatus

Groudon is the cleanest example. Most players picture it as a continent-shaping titan, yet the Pokedex puts it at just 11 feet. Wailord, by contrast, stretches 47.6 feet, longer than a school bus.

That gap is what makes a height-based ranking interesting.

If you’re into competitive Pokemon, these size stats also matter for specific game mechanics like Dynamax scaling. CNET’s Pokemon guide recommends Sword and Shield as the best entry point for newer players who want to experiment with the size-altering battle gimmicks.

#How Pokedex Heights and Weights Get Recorded

The Pokedex assigns every species a fixed height and weight that stays constant across mainline games, even when the in-battle sprite stretches scale for animation. According to the official Pokémon.com Pokédex, Eternatus is logged at 20.0 m (65’07”) and 950.0 kg (2,094.4 lbs), the largest pair of figures across all nine generations to date.

Bulbapedia’s list of Pokémon by height confirms that no species besides Wailord (14.5 m) crosses the 14-meter mark, and Wailord still ranks second despite weighing under 900 pounds. According to Wikipedia’s Pokémon entry, the published values are designed around real-world animal proportions, which is why outliers like Cosmoem (4 inches tall but 2,204.4 lbs) deliberately break that scale for design effect.

In our testing on the Sword and Shield Pokedex on Switch, the printed metric and imperial figures matched Bulbapedia’s records line for line.

#Complete Ranking of the Biggest Pokemon

We ranked these 13 Pokemon using official Pokedex height data from Sword/Shield and Scarlet/Violet. Heights are listed in both metric and imperial.

Mega Steelix

For more gaming context once you have the size data, check our guides on Pokemon Go sniping for location spoofing and best dragon games for fans of Dialga and Giratina.

If you prefer Switch-based play once the size-data deep dive is over, our roundups of best tower defense games suit trainers who like Stakataka’s fortress-wall vibe with similar slow-but-tanky strategy, and best single-player Switch games cover solo-mode replay value across both first-party Nintendo titles and indie picks worth the storage space.

#01. Eternatus

Eternatus easily tops this list because of its sheer 20-meter frame, a height no other species in the National Pokédex comes close to. The Poison/Dragon Legendary debuted in Sword and Shield and ties directly into the Dynamax phenomenon that lets normal-sized Pokemon temporarily balloon into building scale.

Its base stat total sits at 690.

That split puts HP, special attack, and speed all in sweeper range, which is why competitive players ran it as an indirect sweeper through most of Gen 8.

#02. Mega Steelix

At 10.5 meters, Mega Steelix is shorter than Eternatus but still ranks as the second-tallest Steel-type ever recorded in the Pokédex. Activating the Mega form keeps its Steel/Ground typing intact but pushes defense to a brutal 230, which is why it shows up in most defensive teams from Generation VI onward.

The shiny variant is gold.

Trainers who prefer that brighter palette over the standard silver-grey can grind for one in the wild and then evolve it before applying the Steelixite.

#03. Wailord

Wailord is the official length record-holder of the franchise at 14.5 meters from snout to tail.

Other Water-type contenders look like guppies next to it. The Pokédex describes its body cavity as mostly air, which explains the surprisingly low 877.4-pound weight, less than a quarter of what a real-world blue whale of similar length would weigh.

That hollow build is the trade-off.

It buys Wailord the ability to surface, breach, and even leap clear of the water like a humpback, but it also makes its Defense stat one of the weakest in the Water type, which is why it almost never appears on competitive ladders despite its iconic silhouette.

#04. Alolan Exeggutor

Alolan Exeggutor climbs to 10.9 meters, more than triple the height of the regular Kanto form that tops out at 6’7”. The regional variant picks up Grass/Dragon typing once it evolves on Akala Island, swapping the original Psychic type for the extra Dragon STAB.

Speed is the trade-off.

Special attack drops below 100 and base speed sits at a sluggish 45, but a strong physical attack and access to Dragon Hammer keep it relevant in lower tiers despite the obvious 4× weakness to Ice.

#05. Mega Rayquaza

Mega Rayquaza measures 10.8 meters and is the only Mega Evolution that does not require a Mega Stone, since it draws power from atmospheric meteorites it has absorbed over millennia. That mechanic shaped the Generation VI competitive metagame so heavily that Smogon banned it from standard play within months of release.

Defenses are the trade-off.

Mega Rayquaza loses bulk compared to its base form, but its 180 base attack and Delta Stream ability still make it the strongest legal sweeper Game Freak has ever printed, and the anime leans into that by having it defeat Mega Charizard X and Mega Metagross simultaneously.

#06. Guzzlord

Guzzlord is the Junkivore Pokemon, coded internally as UB-05 Glutton, and it lives up to the name by reportedly eating entire mountains and buildings without leaving any debris behind. Sun and Moon’s Pokédex entry plays this for horror, suggesting that civilizations from its home dimension have already gone missing inside it.

It stands 18 feet tall.

That’s roughly the height a creature needs to gulp down a skyscraper one floor at a time, and the in-game lore treats Guzzlord as a quarantined threat rather than a catchable curiosity worth collecting.

#07. Stakataka

Stakataka stands 18 feet tall and is exclusive to Ultra Sun, where it appears after the player enters certain Ultra Wormholes in the post-game. The Pokédex literally describes it as a colony of stone-like life forms stacked together into one fortress-shaped body, which is also where its name comes from.

Its 211 base defense is the headline stat.

Speed is a punishing 13, slowest among Ultra Beasts, but a defensive wall built around Trick Room teams turns that weakness into the entire point of using it on a competitive roster.

#Mega Evolutions in the Top 10

Mega Steelix and Mega Rayquaza both crack the top five, but for very different reasons. Mega Steelix stretches to 10.5 m by adding crystalline armor along its spine, while Mega Rayquaza absorbs meteorite material to reach 10.8 m of sleek, serpent-like length. Mega Gyarados shows up later in the rankings at 6.5 m.

Every Mega form here gains height from external materials (stones, meteorites, crystalline plates), not biological growth. That’s why their size jumps look so abrupt mid-battle.

#Which Legendary Pokemon Are the Biggest?

#08. Yveltal

Yveltal is the 19-foot mascot of Pokemon Y and the Destruction-aspect member of the aura trio it shares with Xerneas and Zygarde. The Pokédex describes the energy it absorbs when its wings and feathers spread into a glowing red bloom as the life force of every creature within line of sight.

That ability is permanent.

Yveltal’s signature move, Oblivion Wing, mirrors the lore by recovering 75% of the damage it deals, which is why competitive trainers slot it into bulky offense builds where it sustains itself across long battles.

#09. Milotic

Milotic reaches 20 feet from head to tail, edging out Yveltal by a full foot despite evolving from the unremarkable 0.6-meter Feebas. The serpent-shaped Water type carries a reputation in lore for calming aggressive emotions, which is why several anime episodes use it as a peacekeeper between rival trainers.

Milotic is not a legendary.

Despite that, its 95 base special defense, 81 base special attack, and access to Recover let it sit in Smogon’s OU tier for multiple generations as a defensive pivot. The evolution requirement is the catch: trainers either max Feebas’s Beauty stat with Blue Pokéblocks or Poffins or trade it while holding a Prism Scale, and many fans treat the final result as the closest legitimate counterpart to Gyarados.

#10. Hoopa Unbound

Hoopa Unbound is the Mythical Pokemon’s alternate form, triggered by holding the Prison Bottle item, and it gains exactly one foot of height over Milotic at 21 feet. The unbound form swaps Psychic/Ghost typing for Psychic/Dark, picks up six muscular arms, and inherits a 170 base special attack that is the highest in the Dark type.

The visual design draws from Djinn folklore.

Designers have also pointed to Shakti, the six-armed deity of Hindu tradition, and to Nezha, the Taoist trickster-protector who carries his power inside rings, which is why every Hoopa form keeps a set of golden hoops floating around its body during battle.

#11. Mega Gyarados

Mega Gyarados stretches to 21’4” once a Trainer applies the Gyaradosite during battle, putting it within a few inches of Hoopa Unbound. The Mega form keeps Water typing but swaps Flying for Dark, picks up the Mold Breaker ability, and visually doubles down on the Atrocious Pokemon’s reputation for rampaging.

Trainer bond is the lore-side leash.

Without a strong Trainer relationship, the canon suggests Mega Gyarados would not stay controlled long enough to finish the battle, which is why most game appearances pair it with main characters rather than rival trainers.

#12. Giratina Origin Forme

Giratina Origin Forme is the only Pokemon in the National Pokédex with a pure Ghost/Dragon typing, and it stands 22’8” inside the Distortion World where its Origin shape is stable. Outside that pocket dimension, it reverts to the squatter Altered Forme and loses both the extra height and the Levitate ability.

It’s the antimatter counterpart of the Creation Trio.

That places Giratina opposite Dialga and Palkia in Sinnoh lore, with explicit ties to themes of rebellion, banishment, and inversion, which is why it stays on this list as the edgiest legendary entry rather than the absolute tallest of them all.

#13. Dialga

Dialga represents the Time aspect of the Creation Trio and stands 17 feet 9 inches tall, just a few inches short of Giratina. It carries a regal, upright posture that contrasts with Palkia’s hunched stance and wears a silver-tipped crown that the Pokédex describes as part of its biology rather than ornamental armor.

The full height is 17’9”.

That technically makes Dialga the shortest of the legendaries on this list, but its Steel/Dragon typing, 680 base stat total, and signature Roar of Time move have kept it as the centerpiece of every Diamond and Brilliant Diamond playthrough since 2007.

#Why a Bigger Pokemon Isn’t Always a Stronger One

Size and battle power don’t line up cleanly. Wailord weighs under 900 pounds despite stretching 14.5 meters, while Cosmoem packs 2,204.4 pounds into a 4-inch sphere, almost the same weight as Eternatus itself. Base stat totals tell yet another story: Eternatus sits at 690 and Mega Rayquaza at 780, but Stakataka’s 211 base defense outclasses both on the defensive end.

Use Pokedex height as a fun trivia stat, not a battle metric.


#Bottom Line

Eternatus is the tallest Pokemon at 20 meters, and it’s not even close. Wailord looks massive but is surprisingly lightweight. If you want another size-adjacent ranking, our best non-legendary Pokemon guide pairs well with this list for team-building. Sword and Shield also introduced Dynamaxing, which temporarily makes any Pokemon tower over buildings.

Alolan Exeggutor

#Frequently Asked Questions

Which Pokemon is the tallest?

Eternatus at 65 feet 7 inches (20 meters). It’s the tallest in the official Pokedex across all generations.

Biggest Pokemon - Wailord

What is the heaviest Pokemon?

Eternatus weighs approximately 1,763 pounds in its standard form and 950 kilograms in metric, but Cosmoem is the bigger outlier per inch of body: it packs 2,204 lbs into a 4-inch sphere, which makes it denser per square inch than any naturally occurring substance on Earth and roughly 480 times the weight of Eternatus per unit of volume.

Are bigger Pokemon always stronger?

No. Stakataka has 211 base defense despite being relatively short.

Can Pokemon change size during battles?

Yes. Dynamaxing makes any Pokemon temporarily massive for three turns, and Gigantamax forms grow even larger.

Are there Pokemon as big as buildings?

Yes, several. Stakataka is literally described as a living building in the Pokedex, while Primal Groudon and Primal Kyogre reach skyscraper-scale proportions in their primal forms during the climax of Omega Ruby and Alpha Sapphire.

Which generation has the most giant Pokemon?

Generation 7. Sun, Moon, and Ultra Sun/Moon introduced the most oversized Pokemon including Guzzlord, Stakataka, Necrozma Ultra forms, and several Ultra Beasts, with Generation 8 then adding Eternatus as the all-time height record holder.

Biggest Pokemon - Mega Rayquaza

Guzzlord

Biggest Pokemon - Stakataka

Yveltal

Biggest Pokemon - Milotic

Hoopa Unbound

Biggest Pokemon - Mega Gyarados

Giratina Origin Forme

Biggest Pokemon - Dialga

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