1. What is Engine Displacement?

Engine displacement is the total volume of air/fuel mixture an engine can draw in during one complete engine cycle. It's a key indicator of engine size and power potential, typically measured in cubic centimeters (cc) or liters (L).

2. How Does the Calculator Work?

The calculator uses the engine displacement formula:

Where:

• \( D \) — Engine displacement (cc)
• \( b \) — Bore diameter (mm)
• \( s \) — Stroke length (mm)
• \( n \) — Number of cylinders

Explanation: The formula calculates the volume of a single cylinder (πr² × stroke) and multiplies by the number of cylinders, then converts from mm³ to cc by dividing by 1000.

3. Importance of Engine Displacement

Details: Engine displacement is a fundamental specification that affects power output, fuel consumption, and vehicle performance characteristics. Larger displacements generally produce more power but consume more fuel.

4. Using the Calculator

Tips: Enter bore and stroke measurements in millimeters, and the number of cylinders. All values must be positive numbers with bore and stroke greater than zero, and at least one cylinder.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between bore and stroke?
A: Bore is the diameter of the cylinder, while stroke is the distance the piston travels from top to bottom.

Q2: How does displacement relate to engine power?
A: Generally, larger displacement engines can produce more power, but efficiency, technology, and design also play significant roles.

Q3: Why divide by 1000 in the formula?
A: This converts the result from cubic millimeters to cubic centimeters (1 cc = 1000 mm³).

Q4: Can this formula be used for any engine type?
A: Yes, it works for both 2-stroke and 4-stroke engines, as well as gasoline and diesel engines.

Q5: How accurate is this calculation?
A: This provides the theoretical displacement. Actual displacement may vary slightly due to manufacturing tolerances and design features.