Packaging decisions, measured
Plan the pack
before the production run.
Practical calculators for sizing cartons, planning materials, and reducing empty space. Free, private, and built for the messy early stage where dimensions still move.
Most-used starting point
Product-to-box size calculator
Add clearance and cushioning around a measured product, then estimate the carton’s internal and external dimensions.
Method, limitations & FAQsChange any value and calculate again for a new result.
The complete workbench
Ten tools. One packaging plan.
Move from product measurements to cartons, materials, labels, pallet loads, and clean specification data.
- 01Product-to-box size calculatorEstimate minimum internal and external carton dimensions from product size, clearance, cushioning, and board thickness.
- 02Carton internal and external dimensions calculatorConvert carton internal dimensions to estimated external dimensions, or external dimensions to usable internal space.
- 03Corrugated blank size estimatorEstimate the flat blank dimensions and area for a regular slotted container (RSC / FEFCO 0201).
- 04Packaging material bill calculatorBuild a practical packaging material bill for an order, including cartons, dividers, labels, tape, void fill, and waste.
- 05Void fill volume calculatorEstimate empty carton volume, product occupancy, and a planning volume for loose void fill.
- 06Case pack quantity calculatorCompare all six orthogonal product orientations to estimate the maximum rectangular units per case.
- 07Stretch film usage estimatorEstimate stretch-film turns, supplied film length, area, and weight for a pallet load.
- 08Label fit and safe-area checkerCheck whether a rectangular label fits a package panel with a required edge-safe margin, including optional 90° rotation.
- 09Pallet case arrangement calculatorEstimate cases per pallet layer, stack layers, total cases, footprint use, and weight limits with 90° case rotation.
- 10Packaging specification CSV validatorValidate a packaging specification CSV locally for required columns, numeric dimensions, supported units, duplicate SKUs, and basic fit.
Built for useful estimates
Precision without pretending.
Inputs stay local
Calculations and CSV checks run in your browser. There is no upload or saved project.
Assumptions stay visible
Every tool explains its model, limitations, and the checks to make before production.
Outputs stay practical
Results use familiar packaging units and show enough working context to challenge the estimate.