what is rpm

RPM stands for revolutions per minute, and it is a unit of rotational speed for rotating machines. It is used to measure how many times an object completes a cycle in a minute. In the case of cars, RPM measures how many times the engines crankshaft makes a full rotation every 60 seconds, and it is typically presented in a vehicles tachometer within the gauge cluster. RPM is an important factor associated with a cars performance, and it is utilized to calculate horsepower. The RPM reading on a tachometer in a car gives how many RPM a cars crankshaft is turning. The higher the RPM, the higher the speed or power produced by the engine. RPM plays a key role in areas related to engine specifications, and it is used to understand the performance of a car. Using the RPM for gear change can save the engine and gearbox from damage and overheating, and it helps to understand the fuel consumption of a car.