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Speed Unit Converter

- By Dr. Minas E. Lemonis, PhD - Updated: March 27, 2019

Enter the speed and select the units to convert from and to:

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TO:

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See also
Mph-kmph converter
Area converter
Volume converter
Length converter
All Unit Converters

Characteristic speeds

Select a unit:
FieldObjectSpeed in[m/s]Remarks
SpaceAverage orbital speed of Earth around the Sun29780info
Escape velocity from Earth's gravity11190info
Earth equator tangential speed (due to rotation)465.1info
Average orbital speed of Moon around the Earth1022info
HumanHuman 100m record top (Usain Bolt, 1009)12.42info
Human 100m record average (Usain Bolt, 2009)10.44info
Human 1 mile record average (Hicham El Guerrouj, 1999)7.21info
Human 5K road run record average (Sammy Kipketer, 2000)6.41info
Human 10000m record average (Kenenisa Bekele, 2005)6.34info
Human marathon record average (Dennis Kimetto, 2003)5.19info
Human preferred walking (non athletic)1.39info
AnimalsPeregrine falcon dive108.1info
Black marlin top (estimated by fishing line unwinding)35.8info
Spine-tailed swift recorded31info
Cheetah top recorded29info
Horse gallop average13.3info
NatureMaximum recorded wind gust (not tornado)113.3info
Sound through air (sea level, 20° C)343.2info
Sound through freshwater (25° C)1497info
Seismic p-waves through granite6100info
Tsunami travel (at 5km depths)224info
Nazca tectonic plate absolute1.17 x10-9info
Gulf stream maximum (near surface)2.5info
TechnologyBugatti Veyron Super Sport (2010)119.7info
Land record (ThrustSSC 1997)341.1info
Land record by wheel driven vehicle (Vesco Turbinator 2001)204.8info
Lockheed SR-71A Blackbird (1976) record980.4info
General Dynamics F16C Block 50 at sea level408.3info
Water record (Spirit of Australia, 1978)142info
Class Nimitz aircraft carrier15.6info
Muzzle velocity of kinetic energy ammunition fired by a tank gun1700info
International Space Station average orbital speed7660info
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Convertto all other units

Enter a value to thespeed fieldabove, in order to see the results in this table.

SystemConvert to:Result
SIMillimeters per second [mm/s]
Millimeters per hour [mm/h]
Millimeters per day [mm/day]
Millimeters per year [mm/year]
Centimeters per second [cm/s]
Centimeters per hour [cm/h]
Centimeters per day [cm/day]
Centimeters per year [cm/year]
Meters per second [m/s]
Meters per hour [m/h]
Meters per day [m/day]
Meters per year [m/year]
Kilometers per second [km/s]
Kilometers per hour [km/h]
Kilometers per day [km/day]
Kilometers per year [km/year]
ImperialInches per second [in/s]
Inches per hour [in/h]
Inches per day [in/day]
Inches per year [in/year]
Feet per second [ft/s]
Feet per hour [ft/h]
Feet per day [ft/day]
Feet per year [ft/year]
Yards per second [yd/s]
Yards per hour [yd/h]
Yards per day [yd/day]
Yards per year [yd/year]
Miles per second [mi/s]
Miles per hour [mph]
Miles per day [mi/day]
Miles per year [mi/year]
Knots (naut. miles per hour) [kn]
EmpeiricalMach (sea level, 20° C ) [M]
AstronomicalNatural speed units [c]
Astronomical units per sec [au/s]
Astronomical units per sec [au/h]
Astronomical units per day [au/day]
Astronomical units per year [au/year]
See also
Mph-kmph converter
Area converter
Volume converter
Length converter
All Unit Converters

Relationships between units of speed

Select a unit:
SystemUnitSpeed in[m/s]Info
SI1 Millimeter per second [mm/s] =0.0011 mm/s = 3.6 m/h = 0.001 m/s
1 Millimeter per hour [mm/h] =2.77778 x10-71 mm/h ≈ 2.77778 x 10-7m/s
1 Millimeter per day [mm/day] =1.15741 x10-81 mm/day ≈ 1.15741 x 10-8m/s
1 Millimeter per year [mm/year] =3.16881 x10-111 mm/year ≈ 3.1688 x 10-11m/s
1 Centimeter per second [cm/s] =0.011 cm/s = 36 m/h = 0.01 m/s
1 Centimeter per hour [cm/h] =0.000002777781 cm/h ≈ 2.77778 x 10-6m/s
1 Centimeter per day [cm/day] =1.15741 x10-71 cm/day ≈ 1.15741 x 10-7m/s
1 Centimeter per year [cm/year] =3.16881 x10-101 cm/year ≈ 3.1688 x 10-10m/s
1 Meter per second [m/s] =11 m/s = 3.6 km/h ≈ 3.2808 ft/s ≈ 2.2369 mph [more...]
1 Meter per hour [m/h] =0.0002777781 m/h ≈ 2.77778 x 10-4m/s [more...]
1 Meter per day [m/day] =0.00001157411 m/day ≈ 1.15741 x 10-5m/s
1 Meter per year [m/year] =3.16881 x10-81 m/year ≈ 3.1688 x 10-8m/s
1 Kilometer per second [km/s] =10001 km/s = 1000 m/s = 3600 km/h ≈ 2236.9 mph
1 Kilometer per hour [km/h] =0.2777781 km/h = 1.609344 mph ≈ 0.27778 m/s ≈ 0.91134 ft/s [more...]
1 Kilometer per day [km/day] =0.01157411 km/day ≈ 11.5741 mm/s
1 Kilometer per year [km/year] =0.00003168811 km/year ≈ 0.031688 mm/s ≈ 0.11408 m/h
Imperial1 Inch per second [in/s] =0.02541 in/s = 0.0254 m/s = 25.4 mm/s ≈ 0.08333 ft/s [more...]
1 Inch per hour [in/h] =0.000007055561 in/h ≈ 2.77778 x 10-4in/s ≈ 7.0555 x 10-6m/s
1 Inch per day [in/day] =2.93981 x10-71 in/day ≈ 1.15741 x 10-5in/s ≈ 2.9398 x 10-7m/s
1 Inch per year [in/year] =8.04877 x10-101 in/year ≈ 3.1688 x 10-8in/s ≈ 8.0488 x 10-10m/s
1 Foot per second [ft/s] =0.30481 ft/s = 12 in/s = 0.3048 m/s ≈ 0.68182 mph [more...]
1 Foot per hour [ft/h] =0.00008466671 ft/h ≈ 2.77778 x 10-4ft/s ≈ 8.46667 x 10-5m/s
1 Foot per day [ft/day] =0.000003527781 ft/day ≈ 1.15741 x 10-5ft/s ≈ 3.52778 x 10-6m/s
1 Foot per year [ft/year] =9.65853 x10-91 ft/year ≈ 3.1688 x 10-8ft/s ≈ 9.65853 x 10-9m/s
1 Yard per second [yd/s] =0.91441 yd/s = 3 ft/s = 0.9144 m/s ≈ 2.04545 mph
1 Yard per hour [yd/h] =0.0002541 yd/h ≈ 2.77778 x 10-4yd/s ≈ 2.54 x 10-4m/s
1 Yard per day [yd/day] =0.00001058331 yd/day ≈ 1.15741 x 10-5yd/s ≈ 1.05833 x 10-6m/s
1 Yard per year [yd/year] =2.89756 x10-81 yd/year ≈ 3.1688 x 10-8yd/s ≈ 2.89756 x 10-8m/s
1 Mile per second [mi/s] =1609.341 mi/s = 1609.344 m/s = 5 793 638.4 mph
1 Mile per hour [mph] =0.447041 mph = 1.609344 km/h = 0.44704 m/s ≈ 1.46667 ft/s [more...]
1 Mile per day [mi/day] =0.01862671 mi/day ≈ 0.0186267 m/s ≈ 0.73333 in/s
1 Mile per year [mi/year] =0.0000509971 mi/year ≈ 5.09970 x 10-5m/s ≈ 7.2279 in/h
1 Knot (naut. miles per hour) [kn] =0.5144441 kn = 1.852 km/h ≈ 1.15078 mph ≈ 0.51444 m/s [more...]
Empeirical1 Mach (sea level, 20° C ) [M] =343.2Mach number = the speed of an object relative to the speed of sound in the fluid around it. In standard atmosphere, at sea level, at 20° C, M is equal to 343.2 m/s or 1126 ft/s. [more...]
Astronomical1 Natural speed unit [c] =2.99792 x1081 natural speed unit = the speed of light in vacuum = 299792458 m/s [more...]
1 Astronomical unit per sec [au/s] =1.49598 x10111 au/s = 149 597 870.7 km/s ≈ 92955807 mi/s [more...]
1 Astronomical unit per hour [au/h] =415550001 au/h ≈ 41555 km/s ≈ 92955807 mi/s [more...]
1 Astronomical unit per day [au/day] =17314601 au/D ≈ 1731.5 km/s ≈ 1075.9 mi/s. Day is defined as 86400 seconds. [more...]
1 Astronomical unit per year [au/year] =4740.474 au/s = 149 597 870.7 km/s ≈ 92955807 mi/s. Year is defined as 365.25 days. [more...]
See also
Mph-kmph converter
Area converter
Volume converter
Length converter
All Unit Converters