Area of a Rhombus

The area of a rhombus calculator finds any of these three values: Area, Diagonal 1 or Diagonal 2. A rhombus has four equal sides, and its diagonals cross at a right angle in the middle. Enter two values and the missing one is calculated automatically.

How it works

The area of a rhombus is half the product of its diagonals:

\[ Area = \frac{Diagonal_1 \times Diagonal_2}{2} \]

This works because the diagonals split the rhombus into four equal right triangles, which together cover half of the rectangle drawn around the rhombus.

Example

A rhombus has diagonals of 8 and 6. The area is 8 × 6 / 2 = 24. If you know the area is 24 and one diagonal is 8, leave the other diagonal empty and the calculator finds 6.