Irregular Prism Volume Calculator
Calculate the volume of a prism when the base is not a standard regular shape. This formula works for any prism where the cross-section is constant along its height.
What is an irregular prism?
An irregular prism is a prism whose base is an irregular polygon (a shape where the sides and angles are not all equal). However, the top and bottom bases are still identical and parallel.
How do I calculate the volume of an irregular prism?
Regardless of the base shape, the volume of any prism is the area of its base multiplied by its height. Formula: Volume = Base Area × Height.
How do I find the base area of an irregular shape?
For irregular polygons, you can divide the shape into smaller regular shapes (like triangles and rectangles), calculate their individual areas, and add them together.
What if the sides are not vertical?
If the sides are slanted (an oblique prism), the volume formula V = Base Area × Vertical Height still applies, but you must use the perpendicular (vertical) height, not the slant length.