Area
20 m²Dokuntag Publish Tools
Area Calculator
Calculate rectangle, square, triangle and circle areas with selectable input and output units.
Calculate common shape areas and square-metre equivalents instantly; measurements stay in your browser.
A = width × length
Square-metre equivalent
20 m²Common area formulas
Rectangle: width × length
Square: side²
Triangle: base × height ÷ 2
Circle: π × radius²