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.
121 m/s
1.21 * 102 m/s (scientific)
120.84 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
435 035 m/hr
396 ft/sec
60.0 secs
1.0 min
60 sec(s)
1 min(s)
7 251 meter
7.25 * 106 mm
725.06 * 103 cm
285.46 * 103 in
23.79 * 103 ft
7.93 * 103 yard
7.25 * 103 m
7.25 km
4.51 mile
3.92 nautical mile