Parallelogram Area Calculator

Quickly find the area of a parallelogram using its base and perpendicular height. This tool is perfect for geometry students needing to check their work or solve problems efficiently.

Enter the length of the base (e.g., 10)

Enter the perpendicular height (e.g., 5)

How it works

Quickly find the area of a parallelogram using its base and perpendicular height. This tool is perfect for geometry students needing to check their work or solve problems efficiently.


The Formula
Area = Base × Height (A = b × h)

Worked Example
  1. Example: Finding the Area

    Imagine a parallelogram with a base of 12 cm and a perpendicular height of 7 cm. Using the formula A = b × h, the area would be 12 cm × 7 cm = 84 cm².


Tips, Assumptions & Limitations
  • Ensure you use the perpendicular height, not the slanted side length.
  • Units for area will be the square of the input units (e.g., cm² if inputs are in cm).
FAQ

The area of a parallelogram is calculated by multiplying its base length by its perpendicular height. The formula is A = b × h, where 'A' is the area, 'b' is the base, and 'h' is the perpendicular height.

The perpendicular height (or altitude) is the shortest distance between the base and the opposite side. It's measured at a 90-degree angle to the base, not along the slanted side of the parallelogram.

Yes, you can use any consistent units (e.g., cm, meters, inches, feet). The resulting area will be in the square of those units (e.g., cm², m², in², ft²).

If you have two adjacent side lengths (a and b) and the angle (θ) between them, you can find the area using A = a × b × sin(θ). Our calculator requires the perpendicular height directly.

Companion article

Parallelogram Area Explained: Formula & Examples

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