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)
120.8 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
434 880 m/hr
396 ft/sec
1.00 secs
1 sec
1 sec(s)
121 meter
120.8 * 103 mm
12.08 * 103 cm
4.76 * 103 in
396.33 ft
132.11 yard
120.8 m
120.8 * 10-3 km
75.06 * 10-3 mile
65.23 * 10-3 nautical mile