Engine Displacement Calculator
Find an engine’s displacement in cubic inches, cc and liters from its bore, stroke and cylinder count.
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Cubic Inches
- Cubic centimeters
- Liters
- Per cylinder
- Bore to stroke
- Piston speed at 6,000 RPM
- Engine Type
Engine Builds
Items you add are saved in this browser.
| Build | Bore × Stroke | Cyl. | Cu. In. | Liters | Remove |
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How to Calculate Engine Displacement
Displacement is the volume every piston sweeps from the bottom of its stroke to the top, added up for all cylinders.
Displacement = π ÷ 4 × bore² × stroke × cylinders
Cubic inches × 16.387 = cubic centimeters Liters = cc ÷ 1,000 1 liter = 61.024 cubic inches
Worked Example
Well-Known Engines
| Engine | Bore × Stroke | Cubic Inches | Liters |
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Tips
Boring an engine over (for example 0.030″ or 0.060″) and fitting a longer-stroke crank are the two ways to add displacement; stroke adds displacement in direct proportion, bore by its square. Marketing names are often rounded: Chevrolet's "5.7" small-block is 5.74 L.