Magnitude (speed)

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This is a compilation of speeds of different magnitudes for comparison purposes. The information is often to be understood as “typical values”; the converted values ​​are rounded.

The basic unit of speed in the international system of units is 1  meter per second ( unit symbol m / s ), the formula symbol v . The following conversions apply:

  • 1 m / s = 3.6 km / h
  • 1 km / h = 0.278 m / s
  • 1  kn = 1.852 km / h = 0.514 m / s

Speeds up to 1 m / s

  • 0.11 mm / a ≈ 3.5 pm / s: The mean growth rate of stalactites
  • 2.15 cm / a = 681 pm / s: speed of the African plate
  • 3 nm / s (1.5 m in 16 years): average body growth rate of humans
  • 15 cm / a ≈ 4.8 nm / s: speed of growth of the human head hair
  • 0.5 mm / s (approx. 10 m in 6 hours): approx. Maximum average speed of the tidal rise
  • 0.8 mm / s: typical snail speed
  • 1 cm / s = 0.60 m / min: typical righting speed when salvaging a capsized large ship
  • 4.76 cm / s: tape speed of a compact cassette
  • 51.4 cm / s = 1.852 km / h: 1 knot
  • 55 cm / s (2 km / h): typical speed of the wheel chain when driving at 20 km / h
  • 53.2 cm / s: peripheral speed of a long-playing record

1 m / s to 10 m / s

  • 1.5 m / s (approx. 5 km / h): pedestrians
  • 5.5 m / s (20 km / h): cyclists
  • 7 m / s (25 km / h): maximum permitted moped speed in Germany

10 m / s to 100 m / s

  • 10.35 m / s (37.3 km / h): World class sprinter (average value in the 200-meter sprint )
  • ≈30 m / s (≈110 km / h): Fastest fish ( sailfish )
  • ≈30 m / s (≈110 km / h): Fastest land animal ( cheetah )
  • 36.1 m / s (130 km / h): Recommended speed on German autobahns , maximum speed on autobahns in many countries

100 m / s to 1000 m / s

  • 119 m / s (430 km / h): fastest scheduled travel speed of a rail-bound train ( Transrapid Shanghai )
  • 159.7 m / s (574.8 km / h): World record for rail vehicles: TGV
  • 233 m / s (850 km / h): Fastest piston-powered aircraft: Rare Bear
  • 240 m / s (860 km / h): Typical cruising speed of a passenger jet
  • 341 m / s (1228 km / h): world record for cars ( ThrustSSC )
  • 343.4 m / s (1236 km / h): speed of sound in air at 20 ° C ( Mach 1 )
  • 465 m / s (1674 km / h): speed of rotation of the earth at the equator
  • 647 m / s (2330 km / h): Maximum cruising speed of the Concorde
  • 715 m / s (2574 km / h): a projectile velocity Kalashnikov in the caliber of 7.62 x 39 mm
  • 833 m / s (3000 km / h): Top speed of the MiG-31 (Mach 2.83) at high altitudes

1 km / s to 10 km / s

10 km / s to 100 km / s

  • 10 km / s: speed of impact of a large meteorite
  • 11.1 km / s: Highest speed reached by humans ( Apollo 10 during re-entry into the earth's atmosphere, relative to earth)
  • 11.2 km / s: Escape speed of the earth
  • 14.36 km / s (51,704 km / h): Take-off speed of Pioneer 10
  • 16.21 km / s: Highest flight speed ever achieved by the New Horizons space probe when it took off from Earth
  • 29.8 km / s: Average orbital speed of the earth around the sun
  • 47.9 km / s: Mean orbit speed of Mercury
  • 59.6 km / s: Jupiter's escape speed
  • 70.2 km / s: Helios (probe) relative to the sun (fastest man-made technical object)
  • approx. 73 km / s: speed with which objects move away from the earth at a distance of one Mpc ( Hubble constant )
  • 100 km / s: Maximum speed of the metal spike that a shaped charge can generate when detonated

Greater speeds

Individual evidence

  1. ↑ Records_der_manned_space # Historie_4
  2. ↑ Contribution to Pioneer 10 on SPON
  3. ^ The Shortest Known Period Star Orbiting our Galaxy's Supermassive Black Hole . October 4, 2012, arxiv : 1210.1294 .