The Engine Displacement Calculator computes total internal combustion engine swept volume in Cubic Centimeters (CC), Liters (L), and Cubic Inches (CID) directly from cylinder bore diameter, crankshaft stroke, and cylinder count.

### Mechanical Principles & Displacement Formulas Engine displacement represents the swept volume created by all pistons traveling between Top Dead Center (TDC) and Bottom Dead Center (BDC): - **Single Cylinder Swept Volume**: $$\text{Cylinder Volume (CC)} = \pi \times \left(\frac{\text{Bore (mm)}}{20}\right)^2 \times \left(\frac{\text{Stroke (mm)}}{10}\right)$$ - **Total Engine Swept Volume**: $$\text{Total Displacement (CC)} = \text{Single Cylinder CC} \times \text{Number of Cylinders}$$ - **Volumetric Unit Conversions**: $$\text{Displacement (Liters)} = \frac{\text{Total CC}}{1{,}000}$$ $$\text{Displacement (Cubic Inches / CID)} = \text{Total CC} \times 0.0610237$$

### Worked Calculation Example Calculating displacement for a 4-cylinder engine with an 84.0 mm cylinder bore and a 90.0 mm crankshaft stroke: - **Cylinder Radius**: $8.40\text{ cm} / 2 = 4.20\text{ cm}$ - **Per-Cylinder Volume**: $\pi \times (4.20)^2 \times 9.00 = 3.14159 \times 17.64 \times 9.00 \approx 498.76\text{ CC}$ - **Total Engine Displacement**: $498.76 \times 4 = 1{,}995.04\text{ CC}$ - **Liter Equivalent**: $1{,}995.04 / 1{,}000 = 2.00\text{ Liters}$ - **Cubic Inch Equivalent**: $1{,}995.04 \times 0.0610237 = 121.75\text{ CID}$

### In-Browser Processing & Privacy Calculations execute locally inside your browser runtime. No engine specifications, vehicle details, or workshop logs are uploaded across the network.