Convert your speed between various different units. Among these,
km/h (kilometers per hour)
mp/h (miles per hour)
knots (used in sea vehicles ex. boats)
m/s (meters per second, used in basic physics)
ft/s (feet per second)
yd/h (yard per hour)
mach (used as air speed)
km/m (kilometers per minute)
km/s (kilometers per second)
