Unit MetricKilometre per secondMetre per secondKilometre per hourMillimetre per second (mm/s)Micrometre per second (µm/s)British/AmericanMile per secondMile per hour (mph)Foot per secondNauticalKnotOtherSpeed of lightSpeed of soundA brisk walkSpeed of a common snail Unit MetricKilometre per secondMetre per secondKilometre per hourMillimetre per second (mm/s)Micrometre per second (µm/s)British/AmericanMile per secondMile per hour (mph)Foot per secondNauticalKnotOtherSpeed of lightSpeed of soundA brisk walkSpeed of a common snail
Unit Metre per second squared (m/s²)Foot per second squared (ft/s²)GalMilligalStandard gravityg-unit (g)British/AmericanMile per secondMile per hour (mph)Foot per secondNauticalKnotOtherSpeed of lightSpeed of soundA brisk walkSpeed of a common snail Unit Metre per second squared (m/s²)Foot per second squared (ft/s²)GalMilligalStandard gravityg-unit (g)British/AmericanMile per secondMile per hour (mph)Foot per secondNauticalKnotOtherSpeed of lightSpeed of soundA brisk walkSpeed of a common snail
Unit DescriptionBeaufort numberWind speedKilometres per hour (min)Kilometres per hour (max)Miles per hour (min)Miles per hour (max)Knot (min)Knot (max)Metre per second (min)Metre per second (max)Wave heightMetre (min)Metre (max)Foot (min)Foot (max)Speed of a common snail Unit DescriptionBeaufort numberDescriptionSea conditionsLand conditionsWind speedKilometres per hour (min)Kilometres per hour (max)Miles per hour (min)Miles per hour (max)Knot (min)Knot (max)Metre per second (min)Metre per second (max)Wave heightMetre (min)Metre (max)Foot (min)Foot (max)