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.
256 m/s
2.56 * 102 m/s (scientific)
255.57 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
920 069 m/hr
839 ft/sec
1.00 secs
1 sec
1 sec(s)
256 meter
255.57 * 103 mm
25.56 * 103 cm
10.06 * 103 in
838.5 ft
279.5 yard
255.57 m
255.57 * 10-3 km
158.81 * 10-3 mile
138 * 10-3 nautical mile