How to Use the 2D & 3D Geometry Area, Perimeter & Volume Calculator
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Select your target shape: Circle, Rectangle, Triangle, Cylinder, Sphere, Cone, or Cube.
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Enter the required dimensions (radius, length, width, height).
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Click "Calculate Geometry" to compute measurements.
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4
Review exact area, perimeter/circumference, total surface area, and volume alongside the exact algebraic formulas.
Practical Example & Use Case
Common Real-World Scenario
Calculating a cylinder with radius 5 cm and height 12 cm gives a volume of 942.48 cm³ (V = πr²h) and total surface area of 534.07 cm².
Technical Notes & Limitations
Browser Engine Architecture
Calculations execute with high-precision JavaScript floating-point arithmetic (Math.PI).
Frequently Asked Questions
What is the formula for the volume of a sphere?
The volume of a sphere is V = (4/3)πr³, and the surface area is A = 4πr².