Microraptor Size Comparison
Microraptor 3D Viewer pairs published Early Cretaceous figures with a 1.8 m person on screen - length about 0.8 m (Size vs human uses 0.8 m), mass about 0.5-1.5 kg - so the crow-sized four-winged scale stays readable at a glance.
Microraptor published figures
The Microraptor facts panel and this table disclose published ranges rather than one invented single number; the Size vs human control uses 0.8 m as the length scale ratio:
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Length | about 0.8 m (holotype M. gui about 77 cm; larger specimens a little longer); Size vs human uses 0.8 m | ~0.44x a person end-to-end at the 0.8 m scale figure |
| Hip height | about 0.2-0.3 m at the hips | well below adult standing height |
| Weight | about 0.5-1.5 kg (NHM about 1 kg) | shown as a cross-source range, not one settled midpoint |
| When it lived | ~125-120 million years ago (Early Cretaceous), Liaoning, China; carnivore; M. gui four-winged material Xu et al. 2003 | much smaller than shipped Velociraptor / Deinonychus / Utahraptor |
How the Microraptor size-vs-human toggle stays honest
The Microraptor 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 (0.8 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 centers near about 0.8 m (holotype about 77 cm), so the toggle picks that clear scale.
What a person would see beside a Microraptor
What a person would see is a crow-sized feathered dromaeosaurid with long flight feathers on arms and legs - turn on the person in the viewer and orbit beside the body to feel how compact it sits relative to ground-raptor siblings. A license-clean CC-BY-SA 4.0 glTF may swap in after first paint; soft-tissue color remains an artistic choice if the model load fails. This model is not a fossil-accurate skeleton.
What the Microraptor size numbers are not
What these size numbers are not is a claim of one precise length or weight: the Microraptor size comparison discloses the about 0.8 m / 0.5-1.5 kg ranges and uses 0.8 m for the Size vs human scale; it does not claim a settled flight mode, does not invent soft-tissue color accuracy for every specimen, and this is not a win/lose game. For the control walkthrough see how to view Microraptor in 3D. For trade-offs versus phone AR apps see Microraptor 3D viewer vs AR apps.
Other dinosaurs to compare
Other dinosaurs in the collection make useful size comparisons too: for a larger ground dromaeosaurid see the Velociraptor 3D Viewer, or for another feathered Early Cretaceous form see related Liaoning siblings on the hub.
Why trust these tools
- Ten-plus years of web tooling. The freetoolonline editorial team has shipped browser-based utilities since 2015. The goal has never changed: get you to a working output fast, without an install.
- No install, no sign-up. Open a tool and get a working output in seconds - nothing to download and no account to create. Tools that need heavy processing run it on our service, so even a low-powered machine gets the job done.
- Analytics stops at the page view. We measure which pages get visited, not what you type or upload inside a tool. There is nothing to sign in to and no profile is attached to your input.
- Open-source core components. The processing engines underneath (libheif, libde265, pdf-lib, terser, clean-css, ffmpeg.wasm, and others) are public and audit-able. We link to each one in its tool page's footer.
- Free, with or without ads. All tools are fully functional without sign-up. The Disable Ads button in the header is always available if you need a distraction-free run.