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.
1.39 m/s
1.39 m/s (scientific)
1.39 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
5 000 m/hr
4.56 ft/sec
1.00 secs
1 sec
1 sec(s)
1.39 meter
1.39 * 103 mm
138.9 cm
54.69 in
4.56 ft
1.52 yard
1.39 m