Surface Area Calculator

Surface area for common solids.

Surface Area Calculator helps you surface area for common solids. Enter radius / side / length, height / width, and depth, review the breakdown, and use the guidance below to understand what the number means — and what it does not. What the Surface Area calculator does Surface Area Calculator is built for arithmetic, algebra, geometry, and number tools. Surface area for common solids. You enter radius / side / length, height / width, and depth, then Simple Calculators computes the result instantly. Results use standard school and engineering formulas that run privately in your browser. How the math works Pick a Length unit (metres by default) and a Shape, then enter its measurements: Radius for round shapes, Side for a cube, Base side and Height for a square pyramid, or Length, Width and Depth for a box. The calculator adds up the area of every outer face, for example sphere = 4 × π × radius², cylinder = 2 × π × radius × (radius + height) and box = 2 × (length × width + width × depth + length × depth). Cones and pyramids include their base, and the slant height is worked out for you from the upright height. The answer is in square units, with square metres and square feet shown too…