Cone Volume Calculator V = π r² h / 3. Radius Height Volume 84.823 Step-by-step with your numbers: 1. Values used: 2. Radius = 3 3. Height = 9 4. Volume = 84.823 Did we solve your problem today? 👍 Yes 👎 No Thanks for the feedback! Cone volume. FAQ ⅓ of cylinder? Yes — cone = same-base cylinder ÷ 3. Related calculators Cone Calculator Find a cone's volume, slant height and surface area. Volume of a Pyramid Calculator V = base-area × h / 3. Cylinder Volume Calculator V = π r² h.