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CC Calculation Formula:
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Engine displacement calculation determines the total volume swept by all pistons in an engine's cylinders. It's a key specification that indicates engine size and power potential, measured in cubic centimeters (cc) or liters.
The calculator uses the engine displacement formula:
Where:
Explanation: The formula calculates the volume of a single cylinder (π × radius² × stroke) and multiplies by the number of cylinders. The bore is divided by 20 to convert from cm to the appropriate unit for radius calculation.
Details: Engine displacement is a fundamental specification that affects power output, torque, fuel efficiency, and vehicle classification. Larger displacement typically means more power but also higher fuel consumption.
Tips: Enter bore and stroke measurements in centimeters, and the number of cylinders. All values must be positive numbers. Bore and stroke should be accurate measurements from the engine specifications.
Q1: Why divide bore by 20 in the formula?
A: The division by 20 converts the bore diameter from centimeters to the appropriate unit for radius calculation in the volume formula (bore/2 = radius, but bore/20 accounts for unit conversion in the specific formula context).
Q2: What's the difference between cc and liters?
A: 1000 cubic centimeters (cc) equals 1 liter. Engine displacement is often expressed in both units, with larger engines typically using liters.
Q3: How accurate is this calculation?
A: The calculation provides theoretical displacement. Actual displacement may vary slightly due to manufacturing tolerances and combustion chamber design.
Q4: Can this formula be used for any engine type?
A: Yes, this formula works for calculating displacement of piston engines regardless of configuration (inline, V, flat, etc.).
Q5: Why is engine displacement important?
A: Displacement affects power output, fuel consumption, emissions, and often determines vehicle taxation and insurance categories in many regions.