Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or r⋅min −1) is a unit of rotational speed (or rotational frequency) for rotating machines. One revolution per minute is equivalent to ⁠ 1 / 60 ⁠ hertz.

Electric motor output power and torque vs. rotation speed. Work is the result of a force acting over some distance. Work is quantified in joules (Nm) or foot-pounds. Torque is a rotating force produced by a motor’s crankshaft. The more torque the motor produces, the greater is …

The calculator below will convert g force (RCF) from revolutions per minute (RPM) or vice versa to achieve more precise experimental and quality control results that require centrifugation. Find the g force by entering the RPM and centrifuge rotor radius. Or, calculate RPM given the g force (x g) and the centrifuge radius.

The Speeds and Feeds Calculator may be employed for calculations of estimated speeds and feeds (RPM and IPM) values on the basis of the parameters you have currently set based on your tools and stock material.

The RPM calculator helps you understand RPM (revolutions per minute) and compute the relationship between the speed of a vehicle and the RPM of its engine.

RPM measures the number of rotations or revolutions an object makes in one minute, often used to describe the speed of rotating components like motors, gears, and wheels. Accurate RPM calculations help ensure that systems operate efficiently and safely, preventing issues like overheating or excessive wear.

You can use this conversion table to convert the frequency in rotations per minute (rpm) to the equivalent frequency in many other units. You can generate a conversion table for any number range by entering a start and end number range below.

With our RPM calculator, you can calculate your engine's RPM based off of your vehicle's speed, tire diameter, rear gear ratio, and transmission gear ratio. Keep in mind that our calculator does NOT take into account drive train loss, road and weather conditions, or the skill of the driver.

An RPM calculator is a tool used to determine the Revolutions Per Minute (RPM) of a rotating object, such as a motor, engine, or gear system. To use this calculator, you need to input details such as the rotational speed of the input shaft, the gear ratio (if applicable), and the number of teeth on the input and output gears (for gear systems).

There is a Theoretical RPM which is what the motor should run at mathematically, and there is the Actual RPM that is usually printed on the motor data sheet. The difference between these numbers is called “slip” and can be thought of as the rotor drag, always trying to reach the perfect Theoretical RPM. PSC motors