Teen Titans Go! Wiki
Teen Titans Go! Wiki

"The Metric System vs Freedom" is the twenty-fourth episode in the fifth season of Teen Titans Go!, and the two-hundredth-thirty-third overall episode of the series.


Robin teaches the other Titans about the difference between the Imperial System and the Metric System.


It's pizza time at Titans Tower, and Cyborg's feeling really thirsty. Beast Boy goes to grab him a liter of soda, but before he can hand it off, Robin utterly annihilates the bottle. There won't be any liter-drinking, metric nonsense while he's the leader—only the random imperial system of measurement is acceptable. Robin cherishes the individuality of America's imperial units... he'll never go along with the evil scientists who are trying to establish a world of metric system uniformity. After eating some "tight muffins" baked using the imperial system, the Titans couldn't agree with Robin more. Someone hiding in a nearby bush doesn't seem to agree, though...

The next morning, Beast Boy, Cyborg, Raven, and Starfire are shocked to hear Robin looking for a "kilogram of eggs." For some reason, he's betrayed his American freedom and gone over to the metric system. After he feeds them disgusting, metric-made muffins, the Titans figure Robin's been corrupted by scientists. He blows this accusation off, but Robin has been acting all sciency lately. After some rigorous research, Raven realizes that "metric" is an anagram for "tric me." This can mean only one thing: scientists have tricked Robin into their dirty metric ways. The team decides to follow Robin on his revolting 5K to see what he's really up to...

Near the end of the 5K, the fatigued Titans notice Robin mysteriously dart into an abandoned structure. They quickly follow him into the building—an abandoned lab. To get to the inner sanctuary, where Robin is hiding, they'll need to pass three deadly antechambers. Each room boasts a challenge of metric knowledge; since the Titans have next to none, they end up covered in darts and flattened like pancakes.

Raven could use a yardstick right now.

Once the Titans reach the supreme sanctum, they find a bunch of wicked scientists at work and their master sitting on her throne. Seeking to convert them to the metric system, she orders a brainwashed Robin to attack his team. He immediately starts beating them with a meter stick, but Raven reminds him that he's an individual... an American! Freed from his psychosis, Robin orders the Titans to bake some imperial muffins. After tasting them, the scientists instantly start tripping, allowing the Titans to overwhelm them. As for the leader, she morphs into a muffin, and Robin squashes her.

The team rejoices, and Robin thanks them for rescuing him from the metric system. To celebrate their American individuality, he then chugs a gallon of milk waving, and the United States's flag...


"Liters" of soda? Not in Robin's Tower.

"We appreciate pankcakes!" —"Yearbook Madness"

Main Characters

Minor Characters






  • Both Beast Boy and Robin mention Darth Vader and Beast Boy jumps onto the table holding a lightsaber, which references Star Wars.
  • Two of the scientists were experimenting on a mouse with an ear growing on it, which was actually a real science experiment like this in the 1990s. The so-called Vacanti mouse had an ear-shaped piece of cartilage attached to its back by scientists. But why?


  • In "Brain Food", it was revealed that Cyborg, Raven, and Starfire are all smart at everything (except for Beast Boy), but in this episode, it reveals that they don't know anything about the metric or Imperial system. Either they forget about it, or they just didn't want to listen to Robin. Then again Raven realizes that one of the questions meant Fahrenheit, not Celsius so it probably they are more used to applying imperial than metric.
  • This episode, like "Throne of Bones", once again contradicts with "Spice Game"; it is evident that Robin can actually bake muffins beside boiling potatoes. Then again, the point of spice game was that it wasn't his cooking itself but more the fact that he refuses to use spices due to his sensitive tongue.

Quality edibles.

Running Gags

  • The Titans arguing with Robin about the metric system.
  • Robin talking in a cheerful, creepy tone after being brainwashed.
  • Characters having muffin mania after eating muffins.
  • Robin drinking and swallowing milk messily.


The transcript for "The Metric System vs Freedom" can be found here.


Click here to view more images from The Metric System vs Freedom.
The image gallery for The Metric System vs Freedom may be viewed here.

v - e - d Episode Guide

Season 1: April 23, 2013 - June 5, 2014
Legendary SandwichPie BrosDriver's EdDog HandDouble TroubleThe DateDude RelaxLaundry DayGhostboyLa Larva de AmorHey Pizza!GorillaGirl's Night OutYou're Fired!Super RobinTower PowerParasiteStarliarMeatball PartyStaff MeetingTerra-izedArtful DodgersBurger vs. BurritoMatchedColors of RavenThe Left LegBooksLazy SundayStarfire the TerriblePower MovesStaring at the FutureNo PowerSidekickCaged TigerSecond ChristmasNose MouthLegsBreakfast CheeseWafflesBe MineOppositesBirdsBrain FoodIn and OutLittle BuddiesMissingUncle JokesMás y MenosDreamsGrandma VoiceReal MagicPuppets, Whaaaaat?

Season 2: June 12, 2014 - July 30, 2015
Mr ButtMan PersonPiratesMoney GrandmaI See YouBrianNatureSalty CodgersKnowledgeSlumber PartyLove MonstersBaby HandsCaramel ApplesSandwich ThiefFriendshipVegetablesThe MaskSerious BusinessHalloweenBoys vs GirlsBody AdventureRoad TripThanksgivingThe Best RobinMouth HoleHot GarbageRobin BackwardsCrazy DaySmile BonesReal Boy AdventuresHose WaterLet's Get SeriousTamaranian VacationRocks and WaterMultiple Trick PonyTruth, Justice and What?Two Bumble Bees and a WaspOil DrumsVideo Game ReferencesCool SchoolKicking a Ball and Pretending to Be HurtHead FruitYearbook MadnessBeast ManOperation Tin ManNeanCampfire StoriesAnd the Award for Sound Design Goes to RobThe HIVE FiveThe Return of SladeMore of the SameSome of Their Parts

Season 3: July 31, 2015 - October 13, 2016
Cat's FancyLeg DayDignity of TeethCroissantSpice GameI'm the SauceHey You, Don't Forget about Me in Your MemoryAccept the Next Proposition You HearThe Fourth Wall40%, 40%, 20%Grube's FairytalesA FarceScary Figure DanceAnimals, It's Just a Word!BBBDAY!Black FridayTwo ParterThe True Meaning of ChristmasSquash & StretchGarage SaleSecret GardenThe Cruel Giggling GhoulHow 'Bout Some EffortPyramid SchemeBeast Boy's St. Patrick's Day Luck, and It's BadThe Teen Titans Go Easter Holiday ClassicBatman v Teen Titans: Dark InjusticeBottle EpisodeFinally a LessonArms Race with LegsObinrayWally TRad Dudes with Bad TudesOperation Dude RescueHistory LessonThe Art of NinjutsuThink About Your FutureTTG v PPGCoconut Cream PiePure ProteinOpen Door PolicyCrazy Desire IslandThe Titans ShowBooty ScootyWho's Laughing NowOregon TrailSnuggle TimeOh Yeah!Riding the DragonThe OverbiteThe Cape

Season 4: October 20, 2016 - June 25, 2018
Shrimps and Prime RibHalloween v ChristmasBooby Trap HouseFish WaterTV KnightTeen Titans Save ChristmasBBSFBDAY!The StreakThe Inner Beauty of a CactusMovie NightBBRAEPermanent RecordTitan Saving TimeThe Gold StandardMaster DetectiveEaster CreepsHand ZombieEmployee of the Month: ReduxThe AvogodoOranginsJinxedBrain PercentagesBL4Z3Hot Salad WaterI Saw You DanceThe Story in Your EyesPlaying Hard to GetThe Night Begins to ShineLicationLabor DayClassic TitansOnes and ZeroesCareer DayTV Knight 2Justice League's Next Top Talent Idol StarThe AcademyCostume ContestThrone of BonesDemon PromThanksgettingThe Self-Indulgent 200th Episode Spectacular!BBCYFSHIPBDAYBeast GirlFlashbackBro-PocalypseMo' Money Mo' ProblemsTV Knight 3

Season 5: June 25, 2018 - April 4, 2020
The Scoop!Chicken in the CradleKaboomsTower RenovationMy Name is JoseThe Power of ShrimpsMonster SquadReal OranginsQuantum FunThe FightThe GrooverJustice League's Next Top Talent Idol Star: Second Greatest Team EditionHow's this for a Special? SpaaaaceBBRBDAYSlapping Butts and Celebrating for No ReasonNostalgia is Not a Substitute for an Actual StoryBusiness Ethics Wink WinkGenie PresidentTall Titan TalesI Used to Be a PeoplesThe Metric System vs FreedomThe ChaffThem Soviet BoysLittle ElvisBooty EggsTV Knight 4Lil' DimplesDon't Be an IcarusStockton, CA!What's Opera TitansForest PiratesThe BergeracSnot and TearsCampfire!What We Learned at CampCommunicate OpenlyRoyal JellyStrength of a Grown ManHad to Be ThereGirls Night InThe Great DisasterThe Viewers Decide

Season 6: October 4, 2019 - present
Butt AtomsTV Knight 5Witches BrewThat's What's Up!Crab ShenanigansBrobotsBrain FlipBeast Boy on a ShelfChristmas CrusadersWe're Off to Get AwardsBat ScoutsWalk AwayRecord BookMagic ManTitans Go CasualRain on Your Wedding DayEgg HuntJustice League's Next Top Talent Idol Star: Justice League EditionMission to Find the Lost StemsDrumsGuitarBassYou're The One

Top of the Titans: April 27, 2018 - July 20, 2018
Raddest SongsBest Love SongsBeast Boy & Cyborg SongsDance PartyBest Rivals