Area Calculator
Radius(r) =
Radius(r) =
Central Angle(n) =
Radius(r) =
Arc Length(l) =
Outer Circle Radius(R) =
Inner Circle Radius(r) =
Outer Diameter(D) =
Thicknesses(d) =
Semi-Major Axis(a) =
Semi-Minor Axis(b) =
Side Length(a) =
Side Length(b) =
Side Length(c) =
Side Length(a) =
Side Length(a) =
Side Length(b) =
Base Length(a) =
Height(h) =
Short Base Length(a) =
Long Base Length(b) =
Height(h) =
Precision
Area(S) =
{{ area }}
Area Calculator supports area calculations for common geometric figures such as Circular, Sector, Ring, Ellipse, Triangle, Square, Rectangle, Parallelogram and Trapezoid.
You can use different formulas and methods to calculate the area of these geometric figures depending on the shape and the given information.
Related Tools

Ratio Calculator
Ratio Calculator is a free online tool that helps you to find the ratio of two or more numbers, simplify a ratio to its lowest terms, convert a ratio to a fraction, find equivalent ratios, and solve ratio word problems. Ratio Calculator can also help you to calculate the proportion of two quantities, the aspect ratio of a shape or an image, the cross multiplication of two fractions, and the golden ratio of a line segment.

Percentage Calculator
Easily calculate percentages from a value to another value, or from a percentage to a value.