Calculate pyramid volume from rectangular base dimensions and perpendicular height.
Height is vertical
Use perpendicular height from the base plane to the apex. Slant height is a different measurement used for surface area.
Example
If the rectangular base is 8 by 6 and the height is 10, the base area is 48. The pyramid volume is 48 x 10 / 3 = 160 cubic units.
How to use the result
Volume is useful for estimating capacity or material in a pyramid-like shape. Surface area needs additional side or slant measurements.
Common mistakes
Do not use the sloped edge as height. The height must be the straight vertical distance from the base to the apex.
Last reviewed: 2026-05-17
Before relying on this result
Use this calculator together with the formula, assumptions, limitations and examples on the page. If the topic involves health, tax, lending, investment, legal, safety or current-rate decisions, treat the number as an estimate and check the relevant primary source or professional guidance.
Calculator metadata last reviewed: 2026-05-14.
Cookie and advertising preferences
CalcMentor uses essential browser storage for this preference. Advertising and measurement cookies are optional and should only run after you allow them.