๐งSurface Area Calculator
Pick a shape, enter its dimensions, and get the total surface area instantly.
Free Surface Area Calculator
This surface area calculator covers the seven 3D shapes most common in geometry coursework: cube, rectangular prism, sphere, cylinder, cone, square pyramid, and triangular prism. Pick your shape, enter its dimensions, and get the total surface area along with the exact formula used.
Surface area measures the total area covering the outside of a solid โ useful for everything from calculating paint or wrapping paper needed, to solving textbook geometry problems. Each shape uses its own standard formula, shown above the input fields once selected.
Free, instant, and runs entirely in your browser โ no sign-up required.