Home > Rpm (disambiguation)

• An acronym for 'revolutions per minute', rpm is a unit of frequency, commonly used to measure rotational speed.
  • Gramophone (phonograph) records typically rotate at 16, 33⅓, 45, or 78 rpm ( CAV).
  • Audio CD rotation rates vary from about 500 rpm when reading the innermost CD track, to 180 rpm when reading tracks near the outer edge ( CLV).
  • An automobile's engine typically makes between 700 and 7000 rpm.
  • Aircraft piston motors can rotate with 8000 rpm.
  • A racing car engine's limits are much higher, as high as 19,000 rpm in Formula One.
  • Gas turbine engines rotate at tens of thousands of rpm.
  • A computer's hard drive can range from 3000-7200 RPM on IDE types and from 10-25,000 on SATA and SCSI drives.
  • A 52x CD-ROMThe CD-ROM (an abbreviation for " Compact Disc Read-Only Memory" ( ROM) ) is a non-volatile optical data storage medium using the same physical format as audio compact discs, readable by a computer with a CD-ROM drive. A CD-ROM is a flat, plastic disc wit drive can rotate a cd as fast as 10,350 RPM.

Standards bodies generally recommend the symbol 'r/min', which better follows the general principles for forming unit symbols.

The SIThe International System of Units (symbol: SI (for the French phrase Systeme International d'Unites , is the most widely used system of units. It is used for everyday commerce in virtually every country of the world except the United States, and it is uni unit of frequency is the hertz (Hz)Hertz is also the name of a car rental company. See The Hertz Corporation''. The hertz (symbol Hz is the SI unit of frequency. It is named in honour of the German physicist Heinrich Rudolf Hertz who made some important contributions to science in the fiel:

1 rpm = 1 r/min = 1/60 Hz

The SIThe International System of Units (symbol: SI (for the French phrase Systeme International d'Unites , is the most widely used system of units. It is used for everyday commerce in virtually every country of the world except the United States, and it is uni unit of angular speed is the radianIn mathematics and physics, the radian is a unit of angle measure. It is the SI derived unit of angle. It is defined as the angle subtended at the center of a circle by an arc of circumference equal in length to the radius of the circle. Angle measures in per secondThis article is about the unit of time. See second (disambiguation) for other uses The second (symbol s is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transi:

rotational speed = 1 rpm = 1 r/min ( = 1/60 Hz) = 2π rad/min = 2π/60 rad/s = 0.104 719 76 rad/s = angular speed

• RPM:
  • RPM Package Manager (originally called "Red Hat Package Manager")
  • RPM (movie)
  • RPM (band) , a Brazilian rock band
  • In firearms, Rounds Per Minute: how many shots an automatic weapon can fire in one minute
  • On roads in the United States, RPM stands for Raised Pavement Marker.