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.
11.1 m/s
1.11 * 101 m/s (scientific)
11.11 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
40 000 m/hr
36.5 ft/sec
3 600 secs
1.0 hrs
3.6 * 103 sec(s)
60 min(s)
1 hr(s)
40 000 meter
4 * 106 cm
1.57 * 106 in
131.23 * 103 ft
43.74 * 103 yard
40 * 103 m
40 km
24.85 mile
21.6 nautical mile