Enter the volume at IVC and the volume at TDC into the Dynamic Compression Ratio Calculator. The calculator will evaluate and display the Dynamic Compression Ratio. 

Dynamic Compression Ratio Formula

The following formula is used to calculate the Dynamic Compression Ratio. 

  • Where DCR is the Dynamic Compression Ratio (IVC:TDC)
  • IVC is the volume at IVC 
  • TDC is the volume at TDC 

To calculate the dynamic compression ratio, divide the volume at IVC by the volume at TDC.

How to Calculate Dynamic Compression Ratio?

The following example problems outline how to calculate Dynamic Compression Ratio.

Example Problem #1:

  1. First, determine the volume at IVC.
    • The volume at IVC is given as: 30.
  2. Next, determine the volume at TDC.
    • The volume at TDC is provided as: 40.
  3. Finally, calculate the Dynamic Compression Ratio using the equation above: 


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

DCR = 30 / 40 = .75 (IVC:TDC)

Example Problem #2: 

For this problem, the variables required are provided below:

volume at IVC = 60

volume at TDC = 20

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

DCR = IVC / TDC = ?