MDManifestDesk

Freight and export tools that actually do the work

Calculators that give you the number and the reasoning behind it, and document generators that produce a finished PDF instead of a template you have to retype. No accounts, no email wall, nothing uploaded to a server.

Freight calculators

Most used
Freight class calculator
Multi-pallet density and class, scored against both the 18-step density guideline and the NMFC 13-sub scale effective April 2026.
Calculator
Pallet calculator
How many cartons fit on a pallet, layers high, pallets needed — and the class of what you built.
Calculator
Container load calculator
Pallets into a 20ft, 40ft, high cube or 45ft — with the limit that actually binds.
Calculator
CBM calculator
Cubic metres for a whole shipment, plus the revenue ton your LCL quote is built on.
Calculator
Freight density calculator
Pounds per cubic foot, cubic feet and CBM, in imperial or metric.
Calculator
Linear feet calculator
Trailer space, pallet positions, and whether you trip a carrier's capacity-load rule.
Calculator
Dimensional weight calculator
DIM weight at 166, 139, 194 or 250 — or whatever divisor your contract names.
Calculator
Chargeable weight calculator
Air, express, parcel and ocean LCL weight/measurement, with the basis you will be billed on.

Export documents

Fill your company details once. They carry across all four documents, along with the goods you enter — so the invoice, the packing list, the certificate and the letter of instruction cannot contradict each other by accident.

Generator
Commercial invoice
Incoterms, HS codes, separated freight and insurance, amount in words, print-ready.
Generator
Packing list
Marks, package counts, net and gross weights, dimensions, totals that reconcile.
Generator
Certificate of origin
Non-preferential, numbered boxes, exporter declaration and a chamber certification block.
Generator
Shipper's letter of instruction
Every AES data element, a power-of-attorney block, and a check on whether EEI filing is required.
Reference
Incoterms 2020 chart
All eleven rules: where risk transfers, who pays carriage, who clears which side.
Reference
Freight class chart
Both density scales, where they disagree, and a dated log of what the NMFC changed.
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Why these exist

Most freight tools online are lead capture wearing a calculator's clothing: three fields, an email gate, and a quote request you did not ask for. Most export document templates are static PDFs you print and fill in by hand, or Word files that fall apart the moment you add a line.

These do the actual job. The calculators show the arithmetic and the rule behind it so you can check the answer rather than trust it. The document generators keep one shipment record in your browser and build every document from it, which removes the most common documentary failure in export — an invoice and a packing list that quietly disagree.

Nothing leaves your browser

Every calculation and every document is produced by JavaScript running on your own machine. Your company details and shipment data are held in your browser's local storage so they are still there tomorrow. There is no account, no server-side copy, and no analytics on your keystrokes. Clear the shipment, or clear your browser data, and it is gone for good.

Questions people actually ask

Are these tools free?

Yes, all of them, with no sign-up and no email wall.

Is my shipment data uploaded anywhere?

No. Everything runs client-side in your browser, and your details are saved only in your browser's own local storage. Nothing is transmitted to a server.

Can I use the documents for real customs filings?

They produce correctly structured documents, but you are responsible for the content. Classification, valuation and origin determinations should be confirmed with your customs broker and against the destination country's requirements before you file.