Tools you might need next
Calculate audio compressor output levels from threshold, ratio, and input level. Visualize gain reduction for mixing and mastering.
Calculate final drive ratio, engine RPM at speed, and optimal gear spacing. Plan transmission ratios for highway cruising and acceleration goals.
Estimate turbocharger sizing from engine displacement, RPM, and target boost. Free turbo sizing calculator for performance builds and forced induction planning.
Cylinder volume equals pi times bore radius squared times stroke length. Bore and stroke must be in the same units (inches or mm).
V = π × (Bore/2)² × StrokeMultiply single cylinder volume by number of cylinders. For V engines, each bank contributes half the total cylinders.
Total = V × Number of cylinders1 liter = 61.024 cubic inches. 1 cubic inch = 16.387 cc. Common conversions: 350 CI = 5.7L, 302 CI = 4.95L, 454 CI = 7.4L.
Liters = CI / 61.024Updated: July 2026
4.000" bore × 3.480" stroke × 8 cylinders = 349.85 CI (5.73L). The iconic SBC 350 displacement.
Overbore and stroker: 4.125" × 4.000" × 8 = 427.65 CI (7.01L). Common LS stroker combination for big-block power in small-block package.
86mm bore × 86mm stroke × 4 = 1,996 cc (2.0L). Square bore/stroke ratio common in modern 4-cylinder performance engines.
The formula uses bore radius (bore ÷ 2), not diameter. Using full bore diameter overestimates displacement by 4×.
Convert all measurements to the same unit before calculating. 86mm bore with 3.48-inch stroke requires converting one unit — 86mm = 3.386 inches.
Engine displacement determines airflow potential, power capacity, and classification for racing classes and insurance. Calculate total displacement in cubic inches and liters from bore diameter, stroke length, and number of cylinders.