Curiosity's top speed across flat ground is just 0.09 mph (0.14 km/h).

Someone · on Jan 19, 2019

And, of course, that is wildly optimistic, given the actual terrain it runs on. https://www.jpl.nasa.gov/news/fact_sheets/mars-science-labor...:

”NASA’s Jet Propulsion Laboratory (JPL), Pasadena, Calif., […] engineered Curiosity […] to travel up to about 200 meters (660 feet) per day on Martian terrain.”

mabbo · on Jan 19, 2019

Sorry, got my info from wikipedia. It may not be totally accurate. I was intending to mean '90 meters', not miles.

> It can travel up to 90 m (300 ft) per hour

https://en.wikipedia.org/wiki/Curiosity_%28rover%29