Enter the exhaust pressure (psi) and the inlet pressure (psi) into the Pressure Ratio Calculator. The calculator will evaluate and display the Pressure Ratio.
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Pressure Ratio Formula
The following formula is used to calculate the Pressure Ratio.
PUR = EP / IP * 100
- Where PUR is the Pressure Ratio (%)
- EP is the exhaust pressure (psi)
- IP is the inlet pressure (psi)
How to Calculate Pressure Ratio?
The following example problems outline how to calculate Pressure Ratio.
Example Problem #1:
- First, determine the exhaust pressure (psi).
- The exhaust pressure (psi) is given as: 30.
- Next, determine the inlet pressure (psi).
- The inlet pressure (psi) is provided as: 15.
- Finally, calculate the Pressure Ratio using the equation above:
PUR = EP / IP * 100
The values given above are inserted into the equation below and the solution is calculated:
PUR = 30 / 15 * 100 = 200 (%)
Example Problem #2:
For this problem, the variables required are provided below:
exhaust pressure (psi) = 50
inlet pressure (psi) = 20
Test your knowledge using the equation and check your answer with the calculator above.
PUR = EP / IP * 100 = ?
