Diameter of Cylinder is 5.76 in

Height of Cylinder is 9.46 in

What is the Volume of Cylinder in Cubic Centimeters?

How can I put this into Dimensional Analysis? Do I have to, or does it convert automatically after you Multiply by (pie) and the Height?

I squared the Radius after finding it by Dividing the Diameter (5.76in) by 2.

I got 2.88in^2

Next I did V = (2.88in^2) x (9.46in)

V = (pi) x (8.2944) x (9.46)

V = 246.5 cm^3

Is this correct or do I still need to convert from inches to Cubic Centimeters?