Usain Bolt 2009 - 100m sprint: 38 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.
10.6 m/s
1.06 * 101 m/s (scientific)
10.56 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
38 000 m/hr
34.6 ft/sec
86 400 secs
1.0 day
86.4 * 103 sec(s)
1.44 * 103 min(s)
24 hr(s)
1 day(s)
912 000 meter
2.99 * 106 ft
997.38 * 103 yard
912 * 103 m
912 km
566.69 mile
492.44 nautical mile