Enter the spring constant (lbf/in) and the motion ratio (lbf/in) into the Wheel Rate Calculator. The calculator will evaluate the Wheel Rate. 

Wheel Rate Formula

The following two example problems outline the steps and information needed to calculate the Wheel Rate.

WR = K * M^2
  • Where WR is the Wheel Rate (lbf/in)
  • K is the spring constant (lbf/in) 
  • M is the motion ratio (lbf/in) 

To calculate the wheel rate, multiply the spring constant by the motion ratio squared

How to Calculate Wheel Rate?

The following example problems outline how to calculate Wheel Rate.

Example Problem #1:

  1. First, determine the spring constant (lbf/in).
    • The spring constant (lbf/in) is given as: 10.
  2. Next, determine the motion ratio (lbf/in).
    • The motion ratio (lbf/in) is provided as: 5.
  3. Finally, calculate the Wheel Rate using the equation above: 

WR = K * M^2

The values provided above are inserted into the equation below and computed.

WR = 10 * 5^2 = 250.00 (lbf/in)

Example Problem #2: 

For this problem, the variables required are provided below:

spring constant (lbf/in) = 20

motion ratio (lbf/in) = 4

Test your knowledge using the equation and check your answer with the calculator..

WR = K * M^2 = ?