Rectangle Calculator

Calculate area, perimeter, and diagonal of a rectangle.

Area
40
l × w
Perimeter
26
2(l + w)
Diagonal
9.43398
√(l²+w²)

Area = 8 × 5 = 40

Perimeter = 2(8 + 5) = 26

Diagonal = √(8² + 5²) = √89 = 9.43398