Get your engine's optimal compression ratio and total displacement in no time flat! Just complete your engine setup, click calculate, and you’re on your way to maximum performance.

This calculator is designed to show the different Compression Ratios for different sized engines.

Instructions: Enter a value in the un-shaded boxes below as they pertain to your engine. Note: For pistons BELOW the block @ TDC – value in box must be a NEGATIVE number (-0.000)

This compression ratio calculator can be used to work out the compression ratio of your engine.

Calculate the compression ratio of an engine using our calculator. Plus, learn the formulas to find the compression ratio.

3 days ago · Input a positive number for valve reliefs/dish and/or piston below deck. Input a negative number if it has a dome and/or piston above deck.

Free online Compression Ratio Calculator to determine the static compression ratio and engine volume based on cylinder dimensions, combustion chamber, and piston characteristics.

This calculator will compute static compression ratio, commonly just called compression ratio. An engine's compressio ratio is the ratio of its cylinder volume at top of piston travel (Top Dead Center) …

Narrow down on your goal compression ratio while being a quick and easy way to test different engine internal setups. Click here and try our compression calculator now!

Easily calculate your engine’s compression ratio and displacement with this free online Engine Compression Ratio Calculator for accurate results.