No sign-up and no sign-in: open the calculator, enter one carton size and pick a container, and you get the carton count for that container straight away. A full account unlocks the complete two-tab calculation — carton loading in five modes, and pallet loading (how much fits on one pallet, how many pallets the shipment needs, four container modes).
One carton size, one container — the answer to "how many cartons fit?". Nothing has to be installed or registered, and the free plan runs at a fixed rate: 1 calculation every 20 minutes per IP, 50 per day site-wide. When the allowance is used up, come back the next day or request an account.
Single carton size in a single container, calculated in maximum-optimization mode. The result is a set of quoting figures rather than a loading plan: the carton count, the volume utilization reached, the gross weight, and whether the payload limit is hit.
The calculator sits on the home page — open it and calculate, with no sign-up and no sign-in. Containers covered are 20GP / 40GP / 40HQ / 45HQ.
Everything past one carton size in one container belongs to a full account:
The free allowance resets the next day. A full account is not subject to it, and business data is kept separate per account — request an account whenever the free plan stops being enough. Loading constraints behind every result are set out in loading limits.
The free plan covers single-SKU container capacity. A full account covers both calculation tabs, with every mode, solver and layout choice open.
| Capability | Free plan | Full account |
|---|---|---|
| Single carton size, single container (maximum capacity) | Yes | Yes |
| Fixed-quantity allocation (one carton size + a total quantity) | No | Yes |
| Mixed carton sizes (load verification / multi-container allocation / optimal mixed loading) | No | Yes |
| Pallet loading (capacity per pallet / pallets required) | No | Yes |
| Combi load (pallets plus loose cartons) | No | Yes |
| Multi-container planning (multi-container allocation / mixed allocation) | No | Yes |
| Rule-based layout (ready to build; the free plan always uses optimized loading) | No | Yes |
| Fast and thorough solvers | No | Yes |
| Custom pallet sizes | No | Yes |
| Custom container payload limit | No | Yes |
| Calculation history | No | Yes |
| Share link (open the 3D loading view without signing in) | No | Yes |
Every calculation runs on the server. History and share links belong to the account that created them and are visible only to that account.
Each IP gets 1 free calculation every 20 minutes, and the site as a whole is capped at 50 per day. When the allowance is used up, wait for the next day or request a full account, which has no calculation limit.
No. The free plan covers a single carton size in a single container. Mixed carton sizes, fixed-quantity allocation, pallet loading and combi loads all need a full account.
The free plan stores no business data at all. A full account keeps calculation history isolated per user, so an earlier result can be reopened and shared.
The free plan returns the key figures, such as the total carton count. The carton-by-carton 3D loading view and result sharing are part of a full account.
The free plan covers single-SKU container capacity. A full account unlocks all five carton-loading modes, pallet loading (per-pallet capacity, pallets required, four container modes), rule-based and optimized layouts, custom pallet sizes, custom payload limits, calculation history, the 3D loading view and shareable results. Leave a contact and we will set up your account within one business day.