Cheetah Speed

Cheetah Speed (Acinonyx jubatus)

No land animal on Earth moves faster than the cheetah. It hits peaks of 110–120 km/h (68–75 mph), but only in short bursts of 20–30 seconds, after which overheating forces it to stop. What really stands out is the acceleration. The cat goes 0–100 km/h in about 3 s, beating most supercars. To get the average speed over a chase you use v = d / t, with d the distance in metres and t the time in seconds, then multiply by 3.6 to land on km/h.

The official captive record is held by Sarah, a cheetah at the Cincinnati Zoo who covered 100 m in 5.95 s back in 2012 at an average of roughly 98 km/h. Every part of the body is built for the job. The spine is extraordinarily flexible, flexing and extending to stretch each stride up to 8 m; the semi-retractable claws grip like sprint spikes; the heart and nasal passages are enlarged; and the long tail swings as a counterweight through sharp turns.

Applications

It shows up in biomechanics research, biology classes, comparative zoology, conservation campaigns and biomimetics, where robots like MIT’s Cheetah borrow from its movement. On the IUCN Red List the species is rated Vulnerable, with only ~7,000 mature individuals left in the wild, and it sits on CITES Appendix I, which bans commercial international trade.

FAQ

Can a cheetah sustain top speed? No. A sprint runs 20–30 s, then body temperature climbs past 40 °C and the animal has to stop. Roughly half of all chases end in a kill.

How does it compare to a racehorse? A thoroughbred tops out near 70 km/h. The cheetah is about 60% quicker, though it can't hold the effort for much more than half a minute.

Is the cheetah a big cat? It does belong to the Felidae family, but to the subfamily Felinae rather than Pantherinae. That's why it can't roar and instead purrs nonstop, the way house cats do.