Online Calculators > Math Calculators > Rectangle Calculator

Rectangle Calculator

Rectangle Calculator - calculate the area, perimeter and diagonal of a rectangle. Online rectangle calculator to calculate the area, perimeter and diagonal given the length and width of the rectangle.

Online Rectangle Calculator

Length:
Width:
Area: 32
Perimeter: 24
Diagonal: 8.9443

Rectangle Formula

Following is the rectangle formula on how to calculate rectangle area, perimeter and diagonal.

Area of Rectangle = l * w,
Perimeter of Rectangle = 2(l + w),
Diagonal of Rectangle = √l2+w2, where
l = length of the rectangle
w = width of the rectangle



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