1. What is Engine Displacement?

Engine displacement is the total volume of all the cylinders in an internal combustion engine. It's typically measured in liters (L) or cubic centimeters (cc). Displacement is a key factor in determining engine power and fuel efficiency.

2. How Does the Calculator Work?

The calculator uses the engine displacement formula:

Where:

• \( V \) — Displacement in liters (L)
• \( bore \) — Diameter of each cylinder in millimeters (mm)
• \( stroke \) — Length of piston travel in millimeters (mm)
• \( cylinders \) — Number of cylinders in the engine

Explanation: The formula calculates the volume of a single cylinder (πr²h) and multiplies by the number of cylinders, then converts from cubic millimeters to liters.

3. Importance of Displacement Calculation

Details: Engine displacement is crucial for understanding engine performance characteristics, emissions regulations classification, and vehicle taxation in many regions.

4. Using the Calculator

Tips: Enter bore and stroke in millimeters, and number of cylinders. All values must be positive numbers (bore > 0, stroke > 0, cylinders ≥1).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between displacement and horsepower?
A: Displacement measures engine size, while horsepower measures power output. Generally, larger displacement engines can produce more power, but efficiency varies.

Q2: How does displacement affect fuel economy?
A: Larger displacement engines typically consume more fuel, but modern technologies like turbocharging can improve efficiency.

Q3: What are typical displacement values?
A: Passenger cars range from 1.0L to 6.0L+, motorcycles 0.125L to 2.5L, and trucks up to 15L or more.

Q4: Can I calculate displacement in cubic inches?
A: Yes, use the same formula but divide by 16,387 instead of 1,000 to convert mm³ to cubic inches.

Q5: Does displacement equal power?
A: Not directly. While related, power depends on many factors including engine design, fuel system, and forced induction.