Speed of sound in dry air: 1236 km/hr
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.
343 m/s
3.43 * 102 m/s (scientific)
343.36 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
1 236 086 m/hr
1 127 ft/sec
1.00 secs
1 sec
1 sec(s)
343 meter
343.36 * 103 mm
34.34 * 103 cm
13.52 * 103 in
1.13 * 103 ft
375.5 yard
343.36 m
343.36 * 10-3 km
213.35 * 10-3 mile
185.4 * 10-3 nautical mile