Container Loading Calculator

SRC-10-R1

1. Cartons & order

Carton units: internal math stays metric

Carton	L (cm)	W (cm)	H (cm)	Wt (kg)	Qty	Remove

Add every different carton size in your shipment.

Freight rate per container, USD (optional)

20GP

40GP

40HC

45GP

45HC

Include special equipment in the plan (reefer 40RF / open-top 40OT / flat-rack 40FR)

40RF

40OT

40FR

Special equipment joins the plan only when ticked; leave unticked for normal dry cartons.

How to find a reference freight rate (2 steps)

1. Open Searates → pick your route and container type, read the USD per-container rate.

2. Paste the rates for the types you can actually book into the fields above.

Rates don't auto-fill: indices are guidance, not final quotes.

Mixed sizes estimated by CBM (efficiency-weighted); single size stays exact.

Cartons per container, if each carton size is packed alone

Carton	CBM each	CBM total

Single-type usage of each container (your carton mix)

Container	Est. usable CBM	Max payload	Vol util	Ctrs (vol)	Ctrs (wt)

* = special equipment; joins the recommended plan only when ticked in section 1.

Max payload = max gross (30,480 kg standard; ~34,000 kg flat-rack) − empty weight; 40ft/45ft boxes weigh more when empty.

Recommended loading plan (best combination)

—

Total shipment:

—

Cartons pack in whole units; usable volume is always below container volume.

What does each input mean? (Glossary)

Item	What it means
Carton L × W × H	External carton dimensions, including packaging.
Wt (kg / lb)	Gross weight per carton, product + packing + carton.
Qty	Number of identical cartons of this size.
Container rate (20GP–45HC, 40RF/40OT/40FR)	Freight USD per container. Optional; ranks plans by cost. Blank = excluded.
45GP / 45HC	45-foot dry containers: ~76 m³ / ~86 m³ high cube. Lane-dependent availability.
40RF / 40OT / 40FR (special equipment)	Reefer / open-top / flat-rack: premium booking, opt-in only; OT/FR heights are planning values.
CBM each / CBM total	One carton's volume in m³. Total = each × Qty.
Max payload	Max gross (30,480 kg standard, ~34,000 kg flat-rack) − empty container weight.
Est. usable CBM	Container volume × packing efficiency for your carton mix.
Ctrs (vol) / Ctrs (wt)	Containers needed by volume only, or by weight only. Real need = the larger.

Estimate only. Confirm with your freight forwarder.

One email a week: 3 BOM-impacting price moves, converted into action.