Area is a quantity that expresses the extent of a two-dimensional measurement of a shape.

Frequent problems related to area include

- Computing area of planar figures like triangles, circles, quadrilaterals, etc.
- Computing the surface area of a figure in three dimensional space like a sphere or a cube.
- Applying techniques of integral calculus to calculate the area bounded underneath the graph of a function, or the area bounded between the graphs of two functions.
- Broadly discussing alternative definitions and notions of area.