143 silhouettes
Size Comparison Library
Every silhouette in Size It Up, as a public library. Browse by category, see the real size of each object, and read the verified source behind every number.
Animals
29 silhouettesAnimal size comparison — the real lengths, heights and wingspans of animals in the Size It Up library.
Size: 1 cm – 27 m
Blue whale … Saharan silver ant
Landmarks
29 silhouettesLandmark size comparison — the real heights of towers, statues, monuments and mountains in the Size It Up library.
Size: 7.8 m – 4 km
Matterhorn … Stonehenge
Countries
28 silhouettesCountry size comparison — the real longest-axis spans of the countries in the Size It Up library.
Size: 0.5 km – 8,647 km
Russia … South Korea
Prehistoric
28 silhouettesDinosaur size comparison — the real lengths of the dinosaurs and prehistoric animals in the Size It Up library.
Size: 2 m – 37 m
Patagotitan … Velociraptor
Everyday Objects
29 silhouettesEveryday object size comparison — the real sizes of household objects in the Size It Up library.
Size: 2 cm – 25 m
Baobab … Heart suit symbol
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Size Comparison Game
Try fresh silhouette pairs in a playable size comparison game, then come back to the library to check the real measurements behind each answer.
Play a size comparison game →All silhouettes
Each entry below shows a silhouette used in the game, its real size, a short fact, and the source we verified it against. Silhouettes are grouped by category — the same groups you can play in Unlimited mode.