Calculate the area of a rectangle given its length and width.
Rectangle Dimensions
Calculation Results
50.00
Total Area (A)
The total surface space and boundary of the rectangle.
Perimeter (P)30.00
Diagonal (d)11.18
L × W
About this calculator
Rectangular Area
A rectangle is a quadrilateral with four right angles. Its area is calculated by multiplying its two adjacent sides. This is the most fundamental area calculation and serves as the basis for measuring floor space, land areas, and more.
💡
Pro Tips
If length and width are equal, the rectangle is a square.
The perimeter is the sum of all sides: 2 × (Length + Width).
The diagonal is found using the Pythagorean theorem: √(L² + W²).
!
Fun Facts
"The 'Golden Rectangle' is a rectangle whose side ratio is the golden ratio (~1.618), considered most aesthetically pleasing."
"Most screens, paper sizes, and building foundations are rectangular."
"A rectangle has exactly two lines of symmetry (connecting midpoints of opposite sides)."
