Rectangular Prism Calculator

Calculate volume and surface area from length, width, and height.

Length (units)

Width (units)

Height (units)

Formula

V = l×w×h, SA = 2(lw+lh+wh)

Volume is length times width times height. Surface area is twice the sum of three face areas.

Examples

5×4×3 box

10×8×6 box

7×7×7 cube box

Frequently Asked Questions

What is the volume of a rectangular prism?

V = l × w × h, the product of the three dimensions.

How is the surface area of a rectangular prism calculated?

SA = 2(lw + lh + wh), covering all six faces.

About this Calculator

Calculate volume and surface area from length, width, and height. All calculations are performed in your browser for instant results. Formulas are mathematically exact using JavaScript's built-in Math functions.