Rhombus calculator

Rhombus area = diagonal one × diagonal two ÷ 2. Each side is half the hypotenuse formed by the two diagonals.

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First diagonal

Second diagonal

Answer

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Rhombus area = diagonal one × diagonal two ÷ 2. Each side is half the hypotenuse formed by the two diagonals.

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Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Step-by-step calculation

Inputs are substituted below. Each line evaluates the next operation; intermediate values are displayed to 12 significant digits while the calculation uses full precision.

Saved scenario

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Formula and assumptions

Assumes a rhombus with diagonals that bisect each other at right angles. Use both full diagonal lengths.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using Rhombus calculator

Rhombus area = diagonal one × diagonal two ÷ 2. Each side is half the hypotenuse formed by the two diagonals.

Assumes a rhombus with diagonals that bisect each other at right angles. Use both full diagonal lengths.

Next: Parallelogram area calculator

A worked example

With first diagonal = 8, second diagonal = 6, the area is 24.

Next: Polygon calculator

Before you use the result

Assumes a rhombus with diagonals that bisect each other at right angles. Use both full diagonal lengths.

Example results for first diagonal

These examples use Second diagonal: 6. They are reference calculations, not recommended settings.

First diagonal	Area
4	12
8	24
16	48

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