Engine Capacity and Compression Calculator

Engine Calculator

Use this form to help you figure out your engine specs.

Enter your desired engine parameters to figure out your Compression Ratio, Deck Height, Combustion Chamber CC, or Displacement.

Example: To determine the deck height required for a 2332cc engine with a compression ratio of 9.5:1, and cylinder heads with a combustion chamber volume of 58cc, plug in the following numbers: bore=94mm, stroke=84mm, combustion chamber volume=58cc and desired compression ratio=9.5. Click the 'deck height' button and you'll be given the answer: 0.06" (or 1.52mm).

Engine Item MM Inches Measurement
Engine Bore
Engine Stroke
Deck Height *
Combustion Chamber CC's
Your Compression Ratio is
Number of cylinders
Your Displacement is :
Solve for which variable ?

Enter a value below in either the mm or inches box,
then tap or click the mouse anywhere outside of that box,
and it will instantly calculate the other values for you.

Millimeter/Inch/Fraction Converter
MM Inch Fraction