Online Tools

    Parallelogram Calculator

    Calculate parallelogram area, perimeter, height, diagonals, and angles from sides and angle, base and height, area and sides, or diagonals.

    Choose one of four input sets. Enter all lengths in one unit; area is shown in square units of the selected scale.
    sample: sides 4 and 2.4, angle 65°
    height 2.18angle 65°side 4side 2.4

    Parallelogram area, angles, and diagonals

    Parallelogram calculator intent is broader than a base-times-height formula. Users expect area, perimeter, heights, both angles, and diagonals from whichever measurements are available.

    Two adjacent sides and their included angle determine area.

    Perimeter is twice the sum of adjacent sides.

    Use one length unit throughout a calculation. Linear outputs use that unit, surface areas use square units, and volume uses cubic units.

    Frequently Asked Questions

    Sources and References

    Calculations are based on the listed reference sources. Links open in a new tab.

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