SPEED
(Full list)
system unit unit-
code
abbrev-
iation
notes conversion factor/(m/s) combinations
SI metre per second m/s m/s US spelling: meter per second
  • m/s ft/s (m/s foot/s)
non-SI metric kilometre per hour km/h km/h US spelling: kilometer per hour
(៥/១៨)
  • km/h mph
Imperial
&
US customary
mile per hour mph mph ០.៤៤៧០៤
  • mph km/h
  • mph kn
foot per second ft/s (foot/s) ft/s code "foot/s" will show "foot per second" if plural.

code "foot/s" will show "foot" or "feet" depending on value.

០.៣០៤៨
  • ft/s m/s
Maritime units knot kn (knot) kn (៤.៦៣/៩)
  • kn mph