Animal size comparison
How much longer was T. rex than Velociraptor? Compare five reviewed measurements, separating total length from standing or shoulder height.
Five curated measurements. Height comparisons mix standing and shoulder height as explicitly labeled; they do not imply identical anatomy or pose. Sources are the existing reviewed collection, not newly measured animals.
How to use this tool
Choose a dimension first. The bars show the stated measurement, not scaled photographs. A specimen measurement is not a species maximum.
An example to try
The 11.6 m Smithsonian T. rex specimen is about 6.44 times the 1.8 m Velociraptor reference length.
Smithsonian · T. rex specimen ↗
Is it free?
Yes. No account or payment is required. Calculations run in your browser. If JavaScript is unavailable, the explanation and source links remain readable, but the interactive controls require it.