Area Calculators & Solvers
Compute the two-dimensional surface space of circles, polygons, and 3D spherical boundaries with step-by-step mathematical working.
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Sphere Surface Area Calculator
Calculate outer surface area of a sphere:
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A = 4πr².Cube Surface Area Calculator
Total exterior surface area of a cube:
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A = 6a².Cylinder Surface Area
Lateral and base surface areas:
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A = 2πr(r + h).Cone Surface Area
Conical slant area and base:
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A = πr(r + l).All Surface Area Formulas
Master cheatsheet of surface area equations for all geometric solids.
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Sphere Volume Formula
Connect surface area to volume:
Sphere Volume →
V = 4/3 π r³.