BoxPack 3D — Free 3D Packing Calculator for Shipping & Ecommerce Free 3D bin packing calculator for web developers and ecommerce owners. Test product packing before courier shipments with interactive 3D visualization, dimension conversion, and box recommendations.

3D bin packing visualization

Dimension and weight unit conversion

Tiered box recommendations

Packing metrics and efficiency calculation

PDF report generation

Also try the Courier Guy Plugin Packing Simulator — reproduces The Courier Guy WooCommerce plugin's real box-fitting algorithm so developers can see exactly why it chose a bigger box or extra flyers for a given cart.