Cone Calculator
Calculate volume and surface area of a cone for design, crafts, and engineering.
Enter radius/diameter and height:
Surface Area
254.16018
Volume
261.79939
Cone Calculations △
Input radius and height to compute volume and surface area.
Key Facts
- Volume = 1/3 × π × r² × h
- Surface Area = π × r × (r + l)
Formulas
- Volume
Volume = 1/3 × π × r² × h- r = base radius, h = height. Volume represents space inside the cone. - Surface Area
Surface Area = π × r × (r + l)- r = radius, l = slant height. Includes base and lateral surface.
Applications 🎨
- Calculate capacity for funnels or containers.
- Model cones in design and craft projects.
FAQs
How do I find the slant height?
Use Pythagoras: l = √(r² + h²)