This area calculator determines the area of a number of common shapes, including rectangle, triangle, trapezoid, circle, sector, ellipse, and parallelogram.

Area is the measure of a region 's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the …

Area is the size of a surface Learn more about Area, or try the Area Calculator.

The area of a circle calculator helps you compute the surface of a circle given a diameter or radius. Our tool works both ways — no matter if you're looking for an area-to-radius calculator or a radius to the …

The area of a shape is a two-dimensional quantity that is measured in square units like square inches, square feet, square yards. Learn more about the area, area formulas of different shapes along with …

Area Calculator Use this area calculator to easily calculate the area of common bodies like a square, rectangle, triangle, circle, parallelogram, trapezoid, ellipse, regular octagon, and sector of a circle. …

Area is the size of a surface! These shapes all have the same area of 9: There are special formulas for certain shapes:

Explore the mathematical concept of area, including its definition as space within a 2D shape and practical calculations for circles, triangles, and rectangles using standard formulas and step-by-step …

May 15, 2026 · Area is the space inside a 2D shape, measured in square units. Learn the area formulas for square, rectangle, triangle, circle, and other shapes.

Area is defined as the total space taken up by a flat 2D shape of an object. Learn the definition, forumulas, area of composite figures, solved examples and more!

Find the area of any simple shape on a map. Useful tool to find the approximate acreage or a tract of land, the square footage of a roof, or estimate of the area of something.