From product-in-a-carton to a full container
Generic cube calculators treat everything the same. ContainerMath works at both scales — Carton Fit packs your products into the right carton or crate, and Freight stacks, nests, crates and balances real cargo into the right number of containers.
Carton Fit
Pack your products into your own cartons and crates (sizes in mm) and get units-per-box and boxes-needed instantly — with an optional max weight per box.
3D + 2D load plans
Interactive 3D placement view plus a 2D cross-section your loading crew can read on a phone at the dock.
Smart bin-packing engine
An extreme-point algorithm fits mixed box sizes, stacks and orientations into the tightest valid arrangement — including pipe nesting when you need it.
Crate & trolley modes
Two-level packing: fill each crate or trolley by SKU first, then stack the crates into the container for the real-world load.
AI manifest import
Paste a dispatch list, packing list or Excel sheet — AI parses sizes, weights and quantities in seconds.
Weight distribution & CoG
Center-of-gravity and axle-balance analysis on every plan, so you catch weighbridge and survey problems before the truck is loaded.
My Load Plans & profiles
Reusable cargo profiles, one-click scenario presets and a full history of plans for repeat jobs and audits.
Export documentsNew
Turn a finished load plan into the shipment's paperwork — commercial invoice, packing list and proforma — with quantities, weights and dimensions pre-filled. Compliant formats for India, the EU, US, UK and more.
Learn more →Paste the mess. Get a clean manifest.
Drop in a dispatch list, a packing list, or an Excel paste. The AI reads sizes, weights and quantities — even estimating dimensions for items described only by name — and hands back structured cargo lines ready to pack.
The same engine, every kind of load
From a wall of identical cartons to a 20-footer of boxes, drums and a machine crate — here are three sample load plans, each packed and balanced its own way.
From dispatch list to load plan in three steps
Paste your manifest
Drop in a dispatch list, packing list or Excel sheet — or enter items by hand. AI fills in dimensions and weights.
Pick your vessel
50+ container, trailer, rail wagon and air ULD types, from a 20ft standard box to an LD-3 air container.
Get the load plan
A packed 3D plan with stacking, crate fill, weight balance and the exact number of containers you need.
Watch ContainerMath build a load plan
Watch a cargo list become a packed, weight-balanced 3D container — or take the quick tour of what the platform does.
If it ships in a container, it packs here
Boxes, cylinders and flexible loads — each packed by its real geometry, orientation and stacking rules.
Down to the last retail unit
Carton Fit packs your products — cartons, cans, bottles, pouches and odd shapes — into the right shipper box or case, then tells you units-per-box and boxes needed. Built for brands, retailers, distributors and 3PLs.
One cargo list, compared across every way to ship it
Tap any two or more to see capacity, internal dimensions and payload side by side.
See all container dimensions in feet & meters →Built for the people who pack and load
ContainerMath grew out of real export jobs on a busy dispatch floor — from right-sizing a retail carton to filling a 40-footer, the workflows are the ones packing and loading teams already use.
Manufacturers & exporters
Producers planning factory-gate dispatches and export containers for boxed, palletized and profile cargo.
Export & dispatch teams
Quote container counts to customers before production ends — not after the first truck is half-loaded.
Logistics & freight planners
Forwarders and 3PLs comparing 20ft, 40ft HC, domestic 32/55ft, trailers and rail wagons for the same cargo.
Project & infrastructure supply
Teams supplying construction and utility projects with mixed boxed, crated and oversized consignments.
Retailers, distributors & 3PLs
Brands, wholesalers and fulfillment partners right-sizing case packs in Carton Fit, then loading them with Freight.
Container loading questions, answered
The essentials on how ContainerMath calculates load plans, container capacity, and CBM.
ContainerMathThe industry standard for 3D container cargo packing and loading plans. Optimize layouts, maximize volume, and reduce shipping overhead.
Built by Backrock Studios