What is the Meaning of CC of an Engine?

CC of an engine denotes the Volume of the cylinder. CC means “Cubic Centimeter” of volume. In an automobile engine, the CC is the term for air and fuel volume in an Internal Combustion Engine. In this article, I will discuss the meaning and the details of the CC of the engine.


CC of an Engine

The piston inside the cylinder is the main component that pressurizes the a/f mixture inside the cylinder. In an engine, the CC has the meaning of engine capacity. Engine capacity is the term for how much air and fuel can be pressurized inside the cylinder to drive the wheel.

Engine capacity, also known as engine displacement, refers to the total volume of all the cylinders in an internal combustion engine. In simpler terms, it represents the total amount of space available in the engine’s cylinders where the air and fuel mixture is burned to produce power.

A larger engine capacity generally implies more power and torque, but it’s important to consider other factors such as the engine’s efficiency, design, and technology for a comprehensive assessment of performance.

Engine Capacity- It is the ratio between how much air is entered into the cylinder and the fuel injected according to the amount of air.

Read More- Understand the Engine Firing Order and Its Importance.

How CC of an Enigne Measured

So the total displacement of the cylinder is measured by CC.

If you have one cylinder then the mathematical equation will be – πr^2h.

Here the r means the total radius of the engine, and the h denotes the Stroke Length of the piston.

Let’s assume the total r is 25 cm and the stroke length “h” is 9 cm,

So, then the total mathematical view will be 22/7*25*9= 706.5 cm^3.

This value is for the one-cylinder engine. If there are 4-cylinder engines then this value will be 706.5*4= 2826 cm^3. So, the vehicle CC is 2800 CC.

Read More- The Governor in Automobile and In IC Engine.

CC of an Engine as Liter

All the automotive companies use the Liter word compared to the CC in the vehicle. In a vehicle, the 1 CC is equal to the 0.001 Liter. The CC is always divided by 1000 to get the value of Liter.

As mentioned above, the total volume of the engine is 2800 CC, then this engine is a 2.8L engine.


In summary, the engine capacity in cubic centimeters is a measure of the total volume in all the cylinders of an engine, and it’s a key specification that indicates the engine’s size and potential power output.

Frequently Asked Questions(FAQ’S)

What is engine capacity?

Engine capacity, also known as engine displacement, refers to the total volume of all the cylinders in an internal combustion engine. It is typically measured in cubic centimeters (cc) or liters (L).

Is engine capacity directly proportional to power output?

While a higher engine capacity can contribute to greater power output, other factors such as engine efficiency, technology, and design also play a crucial role in determining overall performance.

Can two engines with the same capacity perform differently?

Yes, other factors such as the engine’s design, fuel injection system, and overall efficiency play a significant role. Two engines with the same capacity may have different power outputs and performance characteristics.


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