Enter the minimum stress (GPa) and the maximum stress (GPa) into the Stress Ratio Calculator. The calculator will evaluate and display the Stress Ratio. 

Stress Ratio Formula

The following formula is used to calculate the Stress Ratio. 

STR = MINS / MAXS * 100

  • Where STR is the Stress Ratio (%)
  • MINS is the minimum stress (GPa) 
  • MAXS is the maximum stress (GPa) 

How to Calculate Stress Ratio?

The following example problems outline how to calculate Stress Ratio.

Example Problem #1:

  1. First, determine the minimum stress (GPa). 
    • The minimum stress (GPa) is given as: 400.
  2. Next, determine the maximum stress (GPa). 
    • The maximum stress (GPa) is provided as: 850.
  3. Finally, calculate the Stress Ratio using the equation above: 

STR = MINS / MAXS * 100

The values given above are inserted into the equation below and the solution is calculated:

STR = 400 / 850 * 100 = 47.058 (%)


Example Problem #2: 

For this problem, the variables required are provided below:

minimum stress (GPa) = 600

maximum stress (GPa) = 1500

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