What's The Meaning Of RPM And Why Does It Matter?

An easy guide to understanding engine RPM and its affects on horsepower and torque production.

Car Talk, Autos Oct 7, 2025 0 15 Add to Reading List

What's The Meaning Of RPM And Why Does It Matter?

When discussing speed in relation to a car or truck, the conversation usually refers to miles per hour a vehicle can travel, as seen on a speedometer. However, aside from the vehicle, the engine too has a speed of its own. This engine speed is called revolutions per minute, or rpm. The definition of RPM is the measurement of how many times an engine's crankshaft makes one complete rotation within one minute. Engines like the one found in the Lamboghini Temerario can achieve up to an astounding 10,000 RPM while engines like the 6.7 Cummins diesel will only spin to around 3,000 rpm. In this article we will explore engine rpm and its role in horsepower and torque production.

Read Original