en.wikipedia.org/wiki/Revolutions_per_minute

Revolutions per minute is a measure of the frequency of rotation, specifically the
number of rotations around a fixed axis in one minute. It is used as a measure of
rotational **speed** of a mechanical component. .... The disc's rotational **speed**
varies from 25.5 Hz (1530 **rpm**) when reading at the innermost edge, to 10.5 Hz (
630 ...

www.quora.com/What-is-RPM-and-how-does-it-relate-to-speed

**RPM** is the angular **speed** of the engine in revolutions per minute, As mentioned
by sharp eye'd readers, most modern automobile engines are four-cycle which ...

www.quora.com/Whats-the-relationship-between-RPM-and-speed-Whats-the-ideal-RPM-to-speed-ratio-for-engine-performance

When we talk about **rpm** it means engine **rpm** ( crankshaft rotational **speed** )
whereas as vehicle **speed** is manifestation of engine **rpm** multiplied by FDR (
final ...

www.yourmechanic.com/article/how-to-check-rpm-by-jason-unrau

Apr 14, 2016 **...** A car tachometer, or **RPM** gauge, shows the **speed** the engine is spinning. Watch
your **RPM** gauge to improve your car's performance and fuel ...

www.computerhope.com/jargon/r/rpm.htm

Apr 26, 2017 **...** Computer dictionary definition for what **RPM** means including related links,
information, and terms.

wahiduddin.net/calc/calc_speed_rpm.htm

Apr 3, 2012 **...** For those who are curious about the calculations, here are the gory details of the
**speed** versus engine **RPM** calculations: Each revolution of the ...