Svetlana Masterkova 1996 - 1 mile run: 23 km/hr
This calculator helps you estimate the distance travelled after a certain time of constant speed. It also converts to alternative speed units: mile/hr, km/h, m/s, mach, ...
Most countries use the Metric System, which uses the measuring units such as meters and grams and adds prefixes like kilo, milli and centi to count orders of magnitude.
6.39 m/s
6.39 m/s (scientific)
6.39 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
23 000 m/hr
21.0 ft/sec
86 400 secs
1.0 day
86.4 * 103 sec(s)
1.44 * 103 min(s)
24 hr(s)
1 day(s)
552 004 meter
1.81 * 106 ft
603.68 * 103 yard
552 * 103 m
552 km
343 mile
298.06 nautical mile