Parallelogram Area Calculator
Compute the area of a parallelogram: A = base × height.
Calculator
Use the Parallelogram Area Calculator
Result
—
Formula
A = base × height
Step-by-step
- 1
Enter the base
One side of the parallelogram.
- 2
Enter the height
Perpendicular to the base.
Worked example
Example input: a: 8, b: 5
Result: 40
Related tools
- Rectangle Area
A special parallelogram.
- Triangle Area
(base × height) ÷ 2.
Frequently asked questions
What is the parallelogram area formula?
A = base × height, where height is the perpendicular distance between the two bases. A base of 8 with a height of 3 covers 24 square units — the slant of the sides never enters the formula. Whole units and decimals alike follow the identical rule.
Is a rectangle a parallelogram?
Yes — a rectangle is the special case with square corners, and both shapes use base × height. The difference is measurement: for a rectangle the side itself is the height, while for a slanted parallelogram you must measure height perpendicular to the base.
How does the triangle calculator relate?
A diagonal splits a parallelogram into two identical triangles, so each triangle holds exactly half the area. That is why the triangle formula is (base × height) ÷ 2 for the same base and height inputs.
How do you calculate the area of a parallelogram?
Multiply any base by the height measured perpendicular to it: A = base × height. For a parallelogram with base 8 and height 5, the area is 40 square units. The height is the straight-line distance between the two bases — the slanted side length is never used.