QuickFreeTools

Online Rectangular Prism Calculator

Length, width, and height to get volume and surface area.

Frequently Asked Questions

What is the volume formula?
Volume = length × width × height. Surface area = 2(LW + LH + WH).
Is it a cube if L = W = H?
Yes. A cube is a special case of a rectangular prism.
Units?
Use any unit (e.g. m). Volume is in unit³, surface area in unit².

Related Calculators