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Geometry Calculators

Free online geometry tools. Calculate area, volume, perimeter, and more for various shapes. Visual guides and step-by-step solutions included.

Area Calculators

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Area Calculator

Calculate area of various shapes
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Triangle Area Calculator

Calculate area of triangles using different methods
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Circle Area Calculator

Calculate area and circumference of circles
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Rectangle Area Calculator

Calculate area and perimeter of rectangles

Volume Calculators

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Volume Calculator

Calculate volume of 3D shapes

Popular Geometry Questions

How to calculate area? β†’ Triangle area calculator β†’ Circle area calculator β†’ Rectangle area calculator β†’

Geometry Formulas

Area Formulas

  • Circle: A = Ο€rΒ²
  • Triangle: A = Β½ Γ— base Γ— height
  • Rectangle: A = length Γ— width
  • Square: A = sideΒ²

Volume Formulas

  • Sphere: V = (4/3)Ο€rΒ³
  • Cylinder: V = Ο€rΒ²h
  • Cube: V = sideΒ³
  • Rectangular Prism: V = l Γ— w Γ— h