Rectangular Prism Volume Definition The Rectangular Prism Volume Calculator can instantly calculate the volume of a rectangular prism if you enter in the height, length, and width of the rectangular prism and then click the calculate button. A rectangular prism is a solid 3 dimensional object that is comprised of 6 different sides that are all rectangles. Similarly, you can check out the Surface Area of Rectangular Prism with our free calculator.

How to Calculate Rectangular Prism Volume Let's be honest - sometimes the best rectangular prism volume calculator is the one that is easy to use and doesn't require us to even know what the rectangular prism volume formula is in the first place! But if you want to know the exact formula for calculating rectangular prism volume then please check out the "Formula" box above.