How fast do speed skaters go?

Top skaters in races have been recorded doing 14m/s which is about 48km/hr or 30 miles/hr.

62 kph (39 mph) for top skater in sprint

average is 28-35 mph for speed skaters as an average over distances.

Jeremy Wotherspoon holds the world record for the 500 meters in speed skating- 34.03 s; and Tucker Fredricks holds the US record for the 500 meters, 34.31 s.