How does the Parallelogram Calculator work?

Area = base × height (perpendicular height, not side) Then: Perimeter = 2 × (side a + side b) Then: Height = area / base.

Can you give an example of how to use the Parallelogram Calculator?

Example: Input base=10, height=6 gives a result of A=60, P=? (need side) (Area = base × height (not side)).

Is the Parallelogram Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Parallelogram Calculator?

Our Parallelogram Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

Mathematics

Parallelogram Calculator

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A parallelogram has two pairs of parallel sides. Opposite sides are equal in length and opposite angles are equal. Rectangles, rhombuses, and squares are all special parallelograms.

Property	Formula
Area	A = base × height
Perimeter	P = 2(a + b) where a, b are sides
Height from angle	h = a × sin(θ)

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Pro Tip

The height of a parallelogram is NOT the slant side — it is the perpendicular distance between the parallel bases.

References

›Parallelogram — Wikipedia

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