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Engine Displacement Calculator
Engine size in cc, liters, and cubic inches from bore and stroke.
mm
mm
How it works
Displacement = π ÷ 4 × bore² × stroke × number of cylinders. With bore and stroke in millimeters, divide by 1,000 to get cubic centimeters. A four-cylinder with an 86 mm bore and 86 mm stroke displaces about 1,998 cc, or 2.0 liters.
FAQ
Is this calculator free?
Yes. No signup is needed and nothing you enter is stored.
Is the result exact?
Results are rounded for display. For financial, medical, or legal decisions, confirm with a professional.
Do my numbers leave my device?
No. The calculation runs in your browser.