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 an engine's 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 (mm³)
• \( \pi \) — Mathematical constant (approximately 3.14159)
• \( b \) — 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 to get total displacement.

3. Importance of Engine Displacement

Details: Engine displacement is a critical factor in determining an engine's power output, fuel efficiency, and overall performance characteristics. Larger displacements generally produce more power but may 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. The calculator will compute the total engine displacement in cubic millimeters.

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 within the cylinder.

Q2: How do I convert mm³ to liters?
A: Divide the mm³ result by 1,000,000 to get liters (1 liter = 1,000,000 mm³).

Q3: Does larger displacement always mean more power?
A: Generally yes, but engine design, forced induction, and other factors can significantly affect power output.

Q4: What is a typical displacement range for cars?
A: Most passenger cars range from 1.0L to 3.0L, while performance vehicles can go up to 6.0L or more.

Q5: How does displacement affect fuel economy?
A: Larger displacements typically consume more fuel, but modern engine technologies can improve efficiency regardless of size.