Tyrannosaurus rex in 3D - click the head, tail, or a leg for a fact (full controls on the Dinosaurs 3D hub).
A Tyrannosaurus rex stood about 3.7 m tall at the hips and stretched roughly 12.3 m from snout to tail - turn on the human figure to see how far a person's head would reach.
Colors are an artistic reconstruction (fossils don't preserve them). The measurements in the panel are the real published ones.
Tyrannosaurus rex 3D Viewer
The Tyrannosaurus rex model below is fully interactive - drag to spin it, zoom in, and click a body part for a fact (full controls on the Dinosaurs 3D hub).
Tyrannosaurus rex lived in the Late Cretaceous, roughly 68-66 million years ago, in western North America - about 12.3 m long, 3.7 m tall at the hips, weighing near 8.9 tonnes, with around 60 serrated teeth up to 20 cm long.
The first named skeleton was described in 1902 from a Montana find by Barnum Brown. The model shows its short two-fingered arms and heavy, head-balancing tail.
| Measure | Figure |
|---|---|
| Length | about 12.3 m |
| Hip height | about 3.7 m |
| Weight | about 8.9 tonnes |
| When it lived | 68-66 million years ago (Late Cretaceous) |
| Diet | Carnivore |
The viewer is 100% local via WebGL - no sign-in, no upload, and no data about your visit leaves the browser. Skin tone and pattern are an artistic reconstruction, since fossils preserve no color or soft tissue; the numbers above are real published values.
What the model does when you touch it
Clicking the model is part-specific: tap the head, neck, body, tail, or a leg and the facts panel swaps to a short note for that part rather than showing one static blurb, so a click on the tail explains the heavy counterweight while a click on the head reads the roughly 60 serrated teeth up to 20 cm long. The Size vs human toggle does not drop in a fixed silhouette - it places a 1.8 m person and scales it to the honest length ratio against the reconstructed 12.3 m body, so the person reads correctly against the hips at about 3.7 m. Three more controls sit under the canvas: Stop rotation / Auto-rotate freezes or resumes the turntable spin, Idle motion adds a slow sway on the hind legs so a paused model still looks alive, and Fullscreen hands the wrapper the whole screen for a phone in portrait. The geometry is procedural and drawn with WebGL through a site-vendored three.js build that lazy-loads after the page paints and is then cached, so the first spin may wait a beat on a cold load but repeat visits start immediately. Nothing is uploaded and no account is needed - the trade-off against a phone AR app is that you lose room-scale placement but keep a labeled, measured model that works on a laptop with no install.
For the numbers beside a person, the four controls under the canvas, and the trade-offs against phone AR apps, see Tyrannosaurus rex size comparison.
Frequently Asked Questions
How big was Tyrannosaurus rex?
About 12.3 m long and 3.7 m tall at the hips, with weight estimates near 8.9 tonnes. Turn on the human figure in the viewer to see the scale against a 1.8 m person.
Is the model scientifically accurate?
The proportions follow the fossil skeleton, but the skin color and texture are an artistic reconstruction - fossils preserve bone, not soft tissue or color. The length, weight, and age figures shown are real published values.
When and where did T. rex live?
In the Late Cretaceous, roughly 68 to 66 million years ago, in what is now western North America. The first named skeleton was described in 1902 from a Montana find.
Do I need to install anything to view it?
No. The model renders in your browser with WebGL - no app, no account, and nothing about your visit is sent to a server. The 3D engine loads once and is then cached.