1. What is Engine Capacity?

Engine capacity, also known as engine displacement, is the total volume of all the cylinders in an engine. It represents the total swept volume of all pistons moving from top dead center to bottom dead center and is a key specification that indicates the size and potential power output of an engine.

2. How Does the Calculator Work?

The calculator uses the engine capacity formula:

Where:

• \( EC \) — Engine Capacity (m³)
• \( V_s \) — Swept Volume per cylinder (m³)
• \( N_c \) — Number of Cylinders

Explanation: The engine capacity is calculated by multiplying the swept volume of a single cylinder by the total number of cylinders in the engine.

3. Importance of Engine Capacity Calculation

Details: Engine capacity is a fundamental specification that determines an engine's power potential, fuel consumption characteristics, and overall performance. It's used for engine classification, taxation purposes in some countries, and is a key factor in vehicle performance evaluation.

4. Using the Calculator

Tips: Enter the swept volume per cylinder in cubic meters (m³) and the number of cylinders in the engine. Both values must be positive numbers (swept volume > 0, number of cylinders ≥ 1).

5. Frequently Asked Questions (FAQ)

Q1: What is swept volume?
A: Swept volume is the volume displaced by the piston as it moves from top dead center (TDC) to bottom dead center (BDC) in a single cylinder.

Q2: How is engine capacity typically measured?
A: Engine capacity is commonly measured in liters (L) or cubic centimeters (cc) for automotive applications, though the SI unit is cubic meters (m³).

Q3: What's the relationship between engine capacity and power?
A: Generally, larger engine capacity can produce more power, but actual power output also depends on factors like engine design, compression ratio, and forced induction.

Q4: Why is engine capacity important for vehicle classification?
A: Many countries use engine capacity for vehicle taxation, insurance classification, and determining which driving license category is required.

Q5: Can engine capacity be increased?
A: Yes, through methods like boring cylinders to larger diameters or increasing stroke length, though these modifications may require expert engineering and may affect engine reliability.