Circle Area Calculator

Inputs

Results update as you type.

Circle
m
Circle with its radius and diameterArea 7.069 m²r 1.5 md 3 mmyconstructioncalculator.com
Diagram updates as you type.

Results

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Area
7.069m²
Radius1.5 m
Diameter3 m
Circumference9.4248 m
Area in ft²76.09 ft²
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Working
  1. r = 1.5 m
  2. Area = π × r² = 3.14159 × 1.5² = 7.069 m²
  3. Circumference = 2 × π × r = 9.4248 m

Results are estimates for planning and material ordering only. They are not a substitute for structural design or approval by a qualified engineer. Read the full disclaimer.

Circle Area Calculator byMy Construction Calculator: free construction calculators with the working shown.