Size (attribute)

3-4 feet    03 - 4-5 feet    04 - Animals       Timber, Junkyard 5-6 feet    05 - Humans        You and me sized 7-8 feet    06 - Tape Robots   Rumble, Frenzy 9-10 feet   07 - Minibots      Gears, Bumblebee 11-15 feet  08 - Cars          Average sized car 16-19 feet  09 - Trucks        Van, larger SUV 20-23 feet  10 - 'Average' TF  Mirage, Sideswipe, Sunstreaker 24-27 feet  11 - Larger TFs    Ironhide, Skywarp, Jazz 28-33 feet  12 - Leader TFs    Megatron, Optimus Prime, Gestalt leaders 34-39 feet  13 - Big TFs       Ultra Magnus, Dinos, Broadside-Robot mode 40-44 feet  14 - 45-49 feet  15 - Big Altmode   Dino Mode 50-59 feet  16 - 60-69 feet  17 - Most jets     Skywarp - Jet mode 70-89 feet  18 -               Skyfire - Robot mode 90-119 feet 19 -               Skyfire - Jet mode 120-149 feet 20 - 150-189 feet 21 - Gestalt      Bruticus, Defensor, Superion, Menasor 190-229 feet 22 - Guardian     Omega Supreme, Sky Lynx-KittyBird mode 1000-1250 ft 28 - Carrier      Broadside-Ship Mode, USS Flagg 3000-2500 ft 33 - City Robot   Metroplex/Trypticon 22000-30000 34 - City Base     Metroplex/Trypticon-City Mode