Usain Bolt’s top recorded speed is about 27–28 mph during his 100 m world‑record runs.

Quick Scoop

  • In his 9.58 second 100 m world record in Berlin (2009), Bolt’s average speed over the whole race was roughly 23–24 mph.
  • Analysis of his sprint phases shows a top speed of about 27.3–27.8 mph (around 44 km/h) between roughly 60–80 meters into the race.
  • Put simply: if you think in car terms, Bolt at full flight is moving close to a city street speed limit in miles per hour.

Extra context

  • Britannica describes his peak speed in one race at about 27.33 mph (43.99 km/h).
  • Sports stats outlets and news coverage commonly round this to about 27.8 mph as “fastest human speed” in competition.

TL;DR: When people ask “how fast is Usain Bolt mph,” the accepted answer is that he can hit roughly 27–28 mph at top speed, with an average closer to the low‑20s mph over the full 100 m.

Information gathered from public forums or data available on the internet and portrayed here.