# CartonMath

Free carton, pallet and container calculators and export-document tools for exporters, e-commerce sellers, warehouse staff and freight forwarders. All calculations run in the browser and every page shows its working.

Example: 40 × 30 × 20 cm cartons fit 8 per layer and 56 per EUR pallet (stacked to 160 cm).

## Calculators
- [Pallet calculator](https://cartonmath.com/pallet-calculator/): Cartons per layer, layers and total per pallet, drawn in 3D as you type.
- [Container loading calculator](https://cartonmath.com/container-loading-calculator/): How many cartons or pallets fit a 20GP, 40GP, 40HQ or 45HQ, with a payload check.
- [CBM calculator](https://cartonmath.com/cbm-calculator/): Cubic metres for a mixed shipment, container fill, air and LCL chargeable weight.
- [Volumetric weight calculator](https://cartonmath.com/volumetric-weight-calculator/): Dimensional weight at 5000, 6000, 4000, 139 and 166, and the weight you are billed for.
- [Invoice and packing list](https://cartonmath.com/commercial-invoice-generator/): A4 commercial invoice and packing list with every total worked out, printed from your browser.
- [Incoterms 2020 guide](https://cartonmath.com/incoterms/): All 11 rules: where risk passes, who pays freight, insurance and duties.

## Reference
- [Container sizes](https://cartonmath.com/container-sizes/)
- [Pallet sizes](https://cartonmath.com/pallet-sizes/)
- [Volumetric weight chart](https://cartonmath.com/volumetric-weight/)
- [Incoterms 2020](https://cartonmath.com/incoterms/)

## Data and AI access
- https://cartonmath.com/llms.txt and https://cartonmath.com/llms-full.txt
- CSV and JSON under https://cartonmath.com/data/ (CC BY 4.0)

Source page: https://cartonmath.com/
Updated: 2026-10-06
Publisher: CartonMath (https://cartonmath.com)