Parallelogram Area Calculator
Calculate the area of a parallelogram from base and height or side lengths and angle using this free browser-based calculator.
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Shape
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How to use this calculator
- Enter the base and perpendicular height.
- Press Calculate.
How it works
The area of a parallelogram is base × perpendicular height — the same as a rectangle on that base. The height is the straight-line (perpendicular) distance between the two parallel sides, not the length of the slanted side.
Worked example
6 × 4 m. = 24 m².
Common mistakes
- Using the slanted side instead of the perpendicular height — area needs the vertical height.
- Confusing the parallelogram with a rectangle; the height is not the side length.
Frequently asked questions
How do I find the area of a parallelogram?
Multiply the base by the perpendicular height: Area = base × height. The slanted side length is not used.
Why isn't the side length used?
Area depends on how tall the shape is, not the slope of its sides, so you need the perpendicular distance between the two bases.
Which height do I use for a parallelogram?
The perpendicular height between the two parallel sides — not the length of the slanted side.
Related tools
- Rectangle Area Calculator
- Trapezoid Area Calculator
- Ellipse Area Calculator
- Equilateral Triangle Area Calculator
- Regular Hexagon Area Calculator
- Regular Pentagon Area Calculator
Explore more in Geometry, Shape, Area & Volume.
Cite this tool
Zerdly. (2026). Parallelogram Area Calculator. Retrieved from https://www.zerdly.com/tools/parallelogram-area-calculator/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.