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.
13.8 m/s
1.38 * 101 m/s (scientific)
13.79 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
49 650 m/hr
45.2 ft/sec
3 600 secs
1.0 hrs
3.6 * 103 sec(s)
60 min(s)
1 hr(s)
49 650 meter
4.97 * 106 cm
1.95 * 106 in
162.89 * 103 ft
54.3 * 103 yard
49.65 * 103 m
49.65 km
30.85 mile
26.81 nautical mile