Engine Displacement Calculator

The Engine Displacement Calculator allows users to compute the displacement of an engine, both per cylinder and in total, based on user inputs for cylinder bore, piston stroke, and the number of cylinders, and provides the results in cubic centimeters, liters, and cubic inches.

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How to Use the Engine Displacement Calculator

The Engine Displacement Calculator is a tool designed to help you calculate the engine displacement of a vehicle. This guide will walk you through the steps necessary to use the calculator effectively.

Step 1: Input Cylinder Bore

The first step is to enter the cylinder bore in millimeters. The bore is the diameter of the cylinder in which the piston moves. Ensure that the bore measurement you provide is within the supported range of 10mm to 200mm. Input this value into the ‘Cylinder Bore (mm)’ field. For precision, you can use increments of 0.1mm.

Step 2: Input Piston Stroke

Next, enter the piston stroke in the corresponding field. The piston stroke is the distance traveled by the piston within the cylinder. This value should also be between 10mm and 200mm, and like the bore, it can be adjusted in increments of 0.1mm. Enter this value in the ‘Piston Stroke (mm)’ field.

Step 3: Specify Number of Cylinders

The third step involves specifying the number of cylinders in the engine. The number of cylinders should be between 1 and 16, and must be entered as a whole number. Enter this information in the ‘Number of Cylinders’ field to proceed to the next step.

Step 4: Understanding the Results

  • Single Cylinder Displacement: This result provides the displacement of one cylinder of the engine in cubic centimeters (cc). It’s calculated using the formula: (pow(bore/2, 2) * 3.14159 * stroke) / 1000.
  • Total Engine Displacement (cc): This value is the total displacement for all the cylinders and is also expressed in cubic centimeters. It’s derived from multiplying the single cylinder displacement by the total number of cylinders.
  • Total Engine Displacement (L): The total displacement in liters is obtained from dividing the total engine displacement in cubic centimeters by 1000. It provides a more conventional unit measurement for total engine size.
  • Total Engine Displacement (cu.in.): Finally, the total displacement converted to cubic inches (cu.in.) is calculated by multiplying the total displacement in cubic centimeters by 0.0610237, providing the engine displacement in imperial units, which is useful in some regions.

By following these steps, you can accurately calculate the engine displacement values using this user-friendly calculator.