Home › Cuboid Calculator
FREE ONLINE CALCULATOR / GEOMETRY

Rectangular Prism Calculator

Calculate volume, surface area and diagonal of a box. Fast, private, and built to make every number easier.

Input values

✦ Interactive

How does this calculator work?

Calculate volume, surface area and diagonal of a box. Edit the inputs and see the computed results. All calculations take place inside your browser, without submitting values to a server.

V=lwh; A=2(lw+lh+wh)
KEEP EXPLORING

More Geometry calculators

View category →