Math
Trapezoid / trapezium
Calculate the area and midline of a trapezoid from its parallel sides and perpendicular height.
Calculators / Math / Parallelogram area and perimeter
Parallelogram area and perimeter calculator
Multiply the parallelogram base by its perpendicular height for area, and use the base and sloping side for perimeter.
On this page
Area32units²
Perimeter26units
Calculator controls
How to calculate
Multiply the parallelogram base by its perpendicular height for area, and use the base and sloping side for perimeter.
Area = b*h units²; Perimeter = 2*(b+s) units
Worked example
Base: 8; Side length: 5; Perpendicular height: 4.
Area: 32 units²; Perimeter: 26 units.
Assumptions and limits
Multiply the parallelogram base by its perpendicular height for area, and use the base and sloping side for perimeter. Use the same length unit throughout. Angles marked degrees use degrees. Results describe ideal geometric shapes.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Multiply the parallelogram base by its perpendicular height for area, and use the base and sloping side for perimeter.
When this tool is useful
Area = b*h units²; Perimeter = 2*(b+s) units
Understanding your inputs
| Input | What to enter |
|---|---|
| Base | Enter a number of at least 1e-12 and no more than 1000000000000. |
| Side length | Enter a number of at least 1e-12 and no more than 1000000000000. |
| Perpendicular height | Enter a number of at least 1e-12 and no more than 1000000000000. |
Frequently asked questions
What assumptions does this calculation use?
Multiply the parallelogram base by its perpendicular height for area, and use the base and sloping side for perimeter. Use the same length unit throughout. Angles marked degrees use degrees. Results describe ideal geometric shapes.
How is the result calculated?
Area = b*h units²; Perimeter = 2*(b+s) units