Official sizes and heights

Scale in Transformers is inconsistent to put it mildly. There are times however outside and inside of lore when official heights and sizes of characters are given. Here is a list of said sizes.

Primax

Marvel comics:

• Bumblebee 15'
• Shockwave (bio, gun mode length) 35'< ("more than 35 feet")
• Thunderwing (Pretender shell) 40'
• Dreadwind 42'
• Devastator
  • Bio: 60'< ("over 60 feet")
  • UK booklet: 100'
• Predaking 80'
• Superion 86'7 3/8" (8 stories)
• Metroplex (UK booklet) 698'
• Broadside (carrier mode length) 1,200'

The Transformers cartoon scale charts:

• Rumble 2 meters
• Frenzy 2 meters
• Ravage 2 meters
• Laserbeak (wingspan) 2 meters
• Buzzsaw (wingspan) 2 meters
• Kickback 2.5 meters
• Shrapnel 2.5 meters
• Bombshell 2.5 meters
• Bumblebee >3 meters
• Cliffjumper >3 meters
• Windcharger 3 meters
• Gears 3 meters
• Huffer 3.5 meters
• Brawn 3.5 meters
• Reflector 4 meters
• Mirage 4 meters
• Wheeljack 4 meters
• Smokescreen 4 meters
• Bluestreak 4 meters
• Prowl 4 meters
• Jazz 4 meters
• Red Alert 4 meters
• Sideswipe 4 meters
• Sunstreaker 4 meters
• Hoist 5 meters
• Grapple 5 meters
• Inferno 5 meters
• Ratchet 5 meters
• Ironhide 5 meters
• Trailbreaker 5 meters
• Perceptor 5 meters
• Skywarp 5 meters
• Thundercracker 5 meters
• Starscream 5 meters
• Soundwave 5.5 meters
• Shockwave 5.5 meters
• Blaster 5.5 meters
• Ramjet 5.5 meters
• Dirge 5.5 meters
• Thrust 5.5 meters
• Blitzwing 5.5 meters
• Astrotrain 5.5 meters
• Optimus Prime 6 meters
• Megatron 6 meters
• Snarl 7 meters
• Slag 7 meters
• Sludge 7 meters
• Grimlock 7 meters
• Devastator ~16 meters
• Omega Supreme ~18 meters

Hobby Japan:

• Metroplex 800 meters
• Unicron Jupiter-sized

Super Robots Guide:

• Fortress Maximus 3 kilometers

Transformers: The Headmasters scale charts:

• Shouki 5 meters
• Razorclaw 5.5 meters
• Mindwipe 5.5 meters
• Zarak ~5.5 meters
• Highbrow 5.5 meters
• Springer 6 meters
• Weirdwolf 6 meters
• Skullcruncher 6 meters
• Optimus Prime 6 meters
• Rodimus Prime 6 meters
• Hardhead 6 meters
• Cerebros 6 meters
• Brainstorm 6 meters
• Galvatron 6 meters
• Ultra Magnus ~7 meters
• Grimlock 7 meters
• Cyclonus 7 meters
• Sixshot 7 meters
• Devastator ~16 meters
• Raiden ~16 meters
• Predaking 16 meters

Masterforce scale notes:

• Ginrai 8 meters
• Super Ginrai 15 meters

Kodansha properties:

• Shūta Gō 7 meters (Kodansha guidebooks)
• Cab 7 meters (Kodansha guidebooks)
• Minerva 7 meters (Kodansha guidebooks)
• Wilder 7 meters (Kodansha guidebooks)
• Bullhorn 7 meters (Kodansha guidebooks)
• Cancer 7 meters (Kodansha guidebooks)
• Battle Convoy 13 meters (Terebi Magazine)
• King Poseidon 20 meters (Terebi Magazine)
• Guard City 60 meters (Terebi Magazine)
• Battle Gaia 65 meters (Terebi Magazine)
• Metroplex (Comic Bom Bom) 800 meters

Masterpiece bios and booklets:

• Optimus Prime 36 meters
• Starscream (ghost version) 10 meters< ("well over 10 meters tall")

Transformers x Evangelion:

• Optimus Prime Mode Eva 75 meters

Beast Wars cartoon bible:

• Rattrap 5'

Japanese Beast Wars data:

• Rattrap 1.8 meters
• Rattrap (Transmetal) 1.8 meters
• Airazor 1.8 meters
• Quickstrike 2 meters
• Ravage 2.1 meters
• Cheetor 2.3 meters
• Cheetor (Transmetal) 2.3 meters
• Tigatron 2.3 meters
• Terrorsaur 2.3 meters
• Blackarachnia 2.4 meters
• Tarantulas 2.4 meters
• Tarantulas (Transmetal) 2.5 meters
• Scorponok 2.5 meters
• Waspinator 2.5 meters
• Rhinox 2.6 meters
• Inferno 2.6 meters
• Silverbolt 2.6 meters
• Black Arachnia (Transmetal 2) 2.6 meters
• Cheetor (Transmetal 2) 2.7 meters
• Optimus Primal 2.8 meters
• Megatron 2.8 meters
• Dinobot 2.9 meters
• Dinobot II 3.1 meters
• Optimus Primal (Transmetal) 3.2 meters
• Megatron (Transmetal) 3.2 meters
• Depthcharge 3.4 meters
• Rampage 3.4 meters
• Tigerhawk 7 meters
• Megatron (Transmetal 2) 11.5 meters
• Optimal Optimus 12 meters

Beast Wars Transmetals game:

• Rattrap (Transmetal) 180 cm
• Quickstrike 200 cm
• Cheetor (Transmetal) 230 cm
• Tarantulas (Transmetal) 250 cm
• Silverbolt 260 cm
• Optimus Primal (Transmetal) 300 cm
• Megatron (Transmetal) 320 cm
• Rampage (Transmetal) 340 cm

Beast Wars II data

• Drillnuts 2 meters
• Star Upper 2 meters
• Scissorboy 2.1 meters
• Lio Junior 2.2 meters
• DJ 2.5 meters
• Scuba 2.7 meters
• Apache 2.9 meters
• Lio Convoy 3 meters
• Tasmania Kid 2.3 meters
• Coelagon 2.4 meters
• Terrormandar 2.5 meters
• Tonbot 2.5 meters
• Starscream 2.5 meters
• Dirge 2.5 meters
• Thrust 2.6 meters
• Autolauncher 2.6 meters
• Autocrusher 2.7 meters
• Ikard 2.7 meters
• Diver 2.7 meters
• Big Mos 2.7 meters
• Autojetter 2.7 meters
• Scylla 2.7 meters
• Sea Phantom 2.8 meters
• Autostinger 2.8 meters
• Thrustor 2.8 meters
• Mantis 2.8 meters
• Dirgegun 2.8 meters
• Skywarp 2.8 meters
• Hellscream 2.8 meters
• Motorarm 3 meters
• Powerhug 3.2 meters
• Max B 3.2 meters
• Bighorn 3.5 meters
• Santon 3.5 meters
• Gimlet 3.5 meters
• Halfshell 4 meters
• Megastorm 4 meters
• BB 4 meters
• Galvatron 5 meters
• Magnaboss 5.5 meters
• Tripledacus 5.5 meters
• God Neptune 5.7 meters
• Tako Tank/Sumi Icar 5.8 meters
• Gigastorm 15 meters
• Majin Zarak 200 meters

Beast Wars Neo data

• Stampy 2.6 meters
• Heinlad 2.6 meters
• Bump 2.7 meters
• Hydra 2.7 meters
• Colada 2.75 meters
• Break 2.8 meters
• Crazybolt 2.8 meters
• Randy 2.8 meters
• Saberback 2.9 meters
• Longrack 2.9 meters
• Sling 2.9 meters
• Hardhead 2.9 meters
• Sharpedge 3 meters
• Rockbuster 3 meters
• Deadend 3 meters
• Bazooka 3 meters
• Killerpunch 3.1 meters
• Archadis 3.1 meters
• Machkick 3.1 meters
• Survive 3.1 meters
• Guiledart 3.2 meters
• Big Convoy 3.2 meters
• Elphaorpha 3.8 meters
• Drancron 3.9 meters
• Rartorarta 4 meters
• Magmatron 4.5 meters

Dreamwave comics:

• The Nemesis
  • Length: 2.5 miles
  • Wingspan: 1.75 miles
  • Height: 1.25 miles

IDW comics:

• Optimus Prime 60'
• Devastator 400'
• Metrotitan 2 miles

Viron

• Skid-Z 3.7 meters
• Mirage 3.7 meters
• R.E.V. 3.8 meters
• W.A.R.S. 3.8 meters
• Crosswise 3.8 meters
• Hot Shot 3.8 meters
• Gaskunk 4 meters
• Nightscream 4 meters
• Slapper 4 meters
• Movor 4 meters
• Rollbar 4 meters
• Armorhide 4 meters
• Sideburn 4 meters
• Ironhide 4.1 meters
• X-Brawn 4.3 meters
• Ro-Tor 4.6 meters
• Tow-Line 4.8 meters
• Sky-Byte 4.8 meters
• Scourge 5 meters
• Optimus Prime 5 meters
• Optimus Prime (Super Mode) 6.5 meters
• Mega-Octane 7 meters
• Megatron 7 meters
• Midnight Express 9.2 meters
• Rapid Run 9.7 meters
• Railspike 10 meters
• Landfill 12 meters
• Rail Racer 15 meters
• Ruination 16 meters
• Brave Maximus 350 meters

Aurex

Armada video game:

• Hot Shot 16' 5"
• Cyclonus:
  • (vehicle) 17' 1"
  • (robot) 19' 7"
• Starscream:
  • (vehicle) 15' 1"
  • (robot) 19' 7"
• Red Alert 19' 8"
• Optimus Prime 22' 11"
• Megatron:
  • (vehicle) 8' 3"
  • (robot) 22' 11"

Superlink Pla-Kit 1/45 models:

• Grand Convoy 13'1½"
• Grand Scourge 13'1½"
• Grand Convoy (Super Mode) 15'11¼"
• Grand Scourge (Super Mode) 15'11¼"

Galaxy Force DVD booklets:

• Soundwave 4.1 meters
• Crumplezone 5.5 meters

Tyran

Preliminary scale chart for first film:

• Arcee 9'
• Jazz 14'
• Bumblebee 18'
• Ratchet 24'
• Optimus Prime 32'

Scale chart for first film:

• Frenzy 3'
• Jazz 15'
• Bumblebee 16'
• Barricade 16'
• Ratchet 20'
• Ironhide 22'
• Optimus Prime 28'
• Starscream 31'
• Blackout 33'
• Megatron 35'

Transformers film trading cards:

• Optimus Prime 28'

Transformers The Game:

• Bumblebee 16'

Revenge of the Fallen concept art:

• Depthcharge 150'

Revenge of the Fallen film scale charts:

• Frenzy 3'
• Arcee 1 7'
• Arcee 2 7'
• Arcee 3 7'
• Mudflap 8'
• Skids 8'
• Arcee (combined) 15'
• Sideswipe 15'
• Bumblebee 16'
• Barricade 16'
• Ratchet 20'
• Ironhide 22'
• Soundwave 22'
• Cement Mixer 22'
• Optimus Prime 28'
• Osprey 30'
• Starscream 31'
• Blackout 33'
• Megatron 35'
• Rampage 35'
• Optimus Prime (Power Up) 40'
• The Fallen
• Jetfire 50'
• Long Haul 65'
• Scavenger 75'
• Devastator 100'

Transformers: Revenge of the Fallen: The Movie Universe:

• Ravage:
  • Height 7'2"
  • Length 15'
• Skids 11'4"
• Mudflap 11'4"
• Bumblebee 16'2"
• Blackout 22'5"
• Ironhide 25'
• Optimus Prime 28'
• Starscream 31'
• The Fallen 42'
• Devastator (on all fours) 46'

Revenge of the Fallen sticker sheets:

• Megatron 35'

Michael Bay Revenge of the Fallen blog:

• Devastator 108'3 7/32" (10 stories)

Uniend

FOC video game:

• Bumblebee 20'
• Optimus Prime ~30'
• Megatron ~30'
• Grimlock 40'
• Bruticus 70'
• Metroplex 600'

Transformers: Prime cartoon

• Predaking (wingspan) 220 meters ("two football fields")