How calculate the cc of piston?

To calculate the cubic centimeters (cc) of a piston, use the formula: ( V = \pi \times r^2 \times h ), where ( V ) is the volume in cubic centimeters, ( r ) is the radius of the piston (in centimeters), and ( h ) is the height (or stroke) of the piston (also in centimeters). First, measure the diameter of the piston, divide it by 2 to get the radius, and then multiply by the stroke length. Multiply the result by π (approximately 3.14) to find the volume in cc.