Areas & volumes of shapes
Area, perimeter, volume and surface of rectangles, triangles, circles, cuboids, spheres, cylinders and cones.
- Volume
- 50
- Surface area
- 85
- Space diagonal
- 6.87386
Enter all dimensions in the same unit. Areas come out in that unit squared, volumes in that unit cubed (metres give m² and m³).
How it works
Room volume and surface area are the starting point for reverberation-time and room-mode calculations.
Formulas
- circle: A = π r²
- sphere: V = 4/3 · π r³
- cylinder: V = π r² h
- cone: V = π r² h / 3
- triangle: A = b · h / 2
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