Deinonychus Size Comparison
Deinonychus 3D Viewer pairs published Early Cretaceous dromaeosaurid figures with a 1.8 m person on screen - length about 3.3-3.4 m (Size vs human uses 3.4 m), hip height roughly 0.87 m, and weight about 60-100 kg - so the scale gap stays readable at a glance.
Deinonychus published figures
The Deinonychus facts panel and this table disclose published ranges rather than one invented single number; the Size vs human control uses 3.4 m as the length scale ratio:
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Length | about 3.3-3.4 m; Size vs human uses 3.4 m | ~1.9x a person end-to-end at the 3.4 m scale figure |
| Hip height | roughly 0.87 m | about mid-thigh on a standing person |
| Weight | about 60-100 kg (Paul 1988/2016 ~60-73 kg; Campione et al. 2014 ~100 kg) | shown as a method-attributed range, not one point |
| Vs Velociraptor | Deinonychus ~3.3-3.4 m / 0.87 m hip; Velociraptor about 2 m / 0.5 m hip | the person-sized predator behind the popular raptor image |
| When it lived | ~115-93.9 million years ago (Aptian-Cenomanian), Cloverly and Antlers Formations, North America | named 1969 by John Ostrom; species antirrhopus = counterbalance |
How the Deinonychus size-vs-human toggle stays honest
The Deinonychus model is drawn to a fixed on-screen length so it fits the canvas; the Size vs human control then places a 1.8 m person at the true length ratio used by the viewer (3.4 m). Tap Size vs human under the canvas to show or hide the scale figure - the comparison is proportional, not a decorative sticker. Published length still spans about 3.3-3.4 m, so the toggle picks one clear scale inside that disclosed range.
What a person would see beside a Deinonychus
What a person would see is a bipedal, sickle-clawed predator roughly person-sized end-to-end - turn on the person in the viewer and orbit beside a hind leg to feel how the body sits relative to the scale figure. Skin color is an artistic reconstruction; feathering is inferred from related dromaeosaurids and left unrendered; pack behavior from Tenontosaurus evidence is only suggested, not confirmed.
What the Deinonychus size numbers are not
What these size numbers are not is a claim of one precise weight: the Deinonychus size comparison discloses the about 3.3-3.4 m, 0.87 m hip, and 60-100 kg ranges and uses 3.4 m only for the Size vs human scale; it does not invent a settled pack-hunting claim, does not claim Deinonychus is Velociraptor by name, no free-licensed Deinonychus glTF is re-hosted yet so the viewer stays procedural, and this is not a win/lose game. For the control walkthrough see how to view Deinonychus in 3D. For trade-offs versus phone AR apps see Deinonychus 3D viewer vs AR apps.
Other dinosaurs to compare
Other dinosaurs in the collection make useful size comparisons too: for the smaller Mongolian raptor see the Velociraptor 3D Viewer, or for a much larger Cretaceous predator see the Tyrannosaurus rex 3D Viewer.
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