Surface Area of a Cylinder Calculator SA = 2πr(r+h). Radius Height Surface area 245.04 Step-by-step with your numbers: 1. Values used: 2. Radius = 3 3. Height = 10 4. Surface area = 245.04 Did we solve your problem today? 👍 Yes 👎 No Thanks for the feedback! Two end circles + curved side. FAQ Curved only? Lateral SA = 2πrh. Related calculators Cylinder Calculator Find a cylinder's volume and surface area. Cylinder Volume Calculator V = π r² h. Surface Area of a Sphere Calculator SA = 4πr².