Size to Weight Calculator (Rectangular Box)
Calculate estimated weight of a rectangular box or material from length, width, height, and density.
Input Parameters
Enter details for calculation.
Estimated Weight
Expert Tip
Dimensional weight for freight shipping often uses a divisor of 139 or 166 cu in per lb.
Calculation Methodology & Details
Formula
Applies standard construction engineering calculation formulas.
Important Disclaimer
The calculations provided are for educational and structural planning purposes. Always consult a qualified general contractor or structural engineer for site-specific verification.
How to Calculate Step-by-Step
Follow these steps to complete the calculation:
Step 1
Measure the box length, width, and height in inches.
Step 2
Multiply dimensions to get volume in cubic inches, then divide by 1,728 for cubic feet.
Step 3
Multiply cubic feet volume by material density to compute total weight.
Detailed Insights & Expert Guide
ℹ️ About this Calculation
The Size to Weight Calculator converts rectangular 3D box dimensions and material bulk density into total weight in pounds. Useful for cargo shipping, packaging, and structural load estimations.
Variable Glossary
Box Dimensions
Length, width, and height of the container in inches.
Material Density
Weight density of contents in pounds per cubic foot.