Calculate rectangular prism, box or tank volume from length, width and height. Convert units and reverse solve a missing dimension.
Use this rectangular cuboid volume calculator to quickly find the volume of a rectangular cuboid from the length, width, and height. It is useful for geometry, schoolwork, boxes, tanks, and conversions between cubic units.
You can calculate directly from the length, width, and height, convert units instantly, and also use reverse calculation when you need to find a missing dimension from a known volume.
$$V= lwh$$
The standard formula is V = l w h, where l is length, w is width, and h is height.
V = l w h
l
w
h
Yes. It works for any rectangular cuboid shape, including shipping boxes, storage bins, rooms, and rectangular tanks.
Yes. The calculator can show the result in common cubic units and liquid-volume equivalents where useful.
Yes. If the volume is known, reverse calculation can determine one missing rectangular-prism dimension.
It is useful for room volume, shipping estimates, box capacity, storage planning, and everyday rectangular container measurements.
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