DIM vs actual
Which one bills?
Which one bills?
Parcel shipping
Dimensional Weight vs Actual Weight: What Shippers Pay For
A practical explanation of dimensional pricing, divisors and billable weight.
Free tools. No signup required.
Free Packaging, Shipping & Freight Tools
Calculate dimensional weight, CBM, pallet utilization, freight density and more with practical tools built for eCommerce, logistics and global shipping.
Fast answers
Results update instantly in your browser.
Clear formulas
Methods and assumptions shown on every tool.
Built for real work
Useful for shippers, sellers and logistics teams.
Dimensions
40 × 30 × 25 cm
Actual weight
12.0 kg
Volumetric weight
15.0 kg
PACKTOOLBOX
Popular calculators
Start with the tools shippers use most
These six flagship calculators cover package size, volume, pallet planning and freight density. Browse the full library for all 20 tools.
Dimensional Weight Calculator
Compare actual and dimensional weight for parcel shipping.
Use calculatorVolumetric Weight Calculator
Calculate volumetric weight using common shipping divisors.
Use calculatorCBM Calculator
Convert package dimensions into cubic meters for freight.
Use calculatorPallet Calculator
Estimate cartons per pallet, stack height and utilization.
Use calculatorBox Volume Calculator
Find box volume in metric or imperial units.
Use calculatorFreight Density Calculator
Calculate density for freight classification and planning.
Use calculatorNo flagship calculator matches that search. Browse all 20 calculators →
Browse by job
A toolbox organized around real shipping work
Instead of a random calculator directory, PackToolbox groups utilities around the decisions people make while packing, shipping and moving freight.
Parcel Shipping
Dimensional weight, volumetric weight, girth and billable-weight tools.
Browse shipping tools →
Packaging & Volume
CBM, box volume, packaging cost and package-size optimization tools.
Browse packaging tools →
Pallet & Warehouse
Cartons per pallet, stack height, container loading and utilization.
Browse pallet & container tools →
Freight & Logistics
Freight density, LCL chargeable volume, cubic feet and cost allocation.
Browse freight tools →
Guides & explainers
Understand the number, not just the answer
Calculator pages include formulas and examples; deeper guides explain when each method matters in real shipping workflows.
CBM formula
L × W × H = m³
Freight volume
How to Calculate CBM for Boxes, Pallets and Freight
Metric and imperial examples, multiple-carton calculations and common mistakes.
Pallet planning
Pallet Utilization: How Carton Size Changes Your Load
How orientation, overhang and stacking decisions affect pallet capacity.
Transparent calculations
Every tool explains the formula, units and assumptions behind the result.
No account wall
Core calculators stay free and usable without creating an account.
20-tool library
Parcel, packaging, pallet, container, freight, conversion and optimization tools in one focused toolbox.