Wheel Speed Calculator Revolutions Per Minute to Speed Conversion

This calculator converts wheel speed from Revolutions Per Minute (RPM) to speed in miles per hour (MPH) or kilometers per hour (KPH). It is useful for automotive and engineering applications.

Input Parameters

Calculation Results

Calculation Formula

Speed = (2 * π * radius * RPM) / 60

Where:
π = 3.141592653589793
Radius = Wheel radius in meters
RPM = Revolutions Per Minute
Speed = Speed in meters per second

Wheel Speed Calculator Revolutions Per Minute to Speed Conversion Calculator Usage Guide

Learn how to use the Wheel Speed Calculator Revolutions Per Minute to Speed Conversion calculator and its working principles

How to Use the Calculator

  1. Enter the wheel radius in meters.
  2. Enter the revolutions per minute (RPM) of the wheel.
  3. Select the desired unit of speed (MPH or KPH).
  4. Click the "Calculate" button to compute the speed.
  5. The result will be displayed in the selected unit.

Working Principle

The calculator uses the formula:

Speed = (2 * π * radius * RPM) / 60

Where:

  • π is the mathematical constant Pi (approximately 3.14159).
  • radius is the radius of the wheel in meters.
  • RPM is the number of revolutions the wheel makes per minute.
  • Speed is the speed of the wheel in meters per second, which is then converted to the desired unit (MPH or KPH).

Example

If a wheel with a radius of 0.3 meters makes 300 RPM, the speed in MPH would be calculated as follows:

  1. Speed in meters per second = (2 * π * 0.3 * 300) / 60 ≈ 9.42 m/s
  2. Speed in MPH = 9.42 * 2.23694 ≈ 21.00 MPH