Jurassic Park Dinosaur Size Converter
Compare movie dinosaur lengths, from Velociraptors to the Mosasaurus, using official Jurassic Park/World figures.
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About this conversion
The Jurassic Park films take some liberties with real paleontology, most famously, the movie Velociraptor is roughly six times the mass of the real animal, closer in size to its relative Deinonychus. Rexy, the franchise's recurring Tyrannosaurus, is commonly cited at around 12 meters long; the genetically engineered Indominus rex is bigger still at roughly 15 meters; and the Mosasaurus and Brachiosaurus dwarf them both.
Exact figures vary slightly between films, official websites and art books (this is a franchise with three different in-universe size charts that don't always agree), so treat these as the commonly cited “official-ish” numbers rather than a single locked canon.
Units supported: Meters, feet, and named dinosaur lengths (Velociraptor, T. rex, Indominus rex, Mosasaurus, Brachiosaurus).
Source note: Lengths compiled from Jurassic World official site figures and franchise art books; these vary slightly by source.
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Frequently asked questions
What units can I convert with the Jurassic Park Dinosaur Sizes converter?
Meters, feet, and named dinosaur lengths (Velociraptor, T. rex, Indominus rex, Mosasaurus, Brachiosaurus).
Is this an official, canon conversion?
Lengths compiled from Jurassic World official site figures and franchise art books; these vary slightly by source.
Can I convert in both directions?
Yes, enter a value in either field and the other updates instantly. You can also tap the swap button to flip the two units, or use the copy-link button to share this exact conversion.