PORTENTRY
Clear customs with confidence — free calculators for import duty, landed cost, customs value, trade currency conversion, volumetric weight, and container load, plus plain-English guides to duties, clearance, HS codes, freight, and cross-border trade.
From pricing the duty on a shipment and building up its true landed cost to fixing the dutiable customs value, converting an invoice, weighing cartons, and loading a container, PortEntry pairs free hands-on customs and trade calculators with plain-English guides and an illustrated museum of world trade. Estimate first, clear with confidence.
Customs & Import Calculators
Free calculators for the numbers behind cross-border trade — import duty, landed cost, customs value, invoice currency conversion, volumetric weight, and container load.
Import Duty Calculator
Enter a customs value and duty rate to see the duty owed, with an optional VAT/GST layer on top, so you know the tax on a shipment before it lands
Landed Cost Calculator
Add goods, freight, insurance, duty, and clearance fees to get the true total landed cost of an import — and the real cost per unit once everything is counted
Customs Value Calculator
Work out the dutiable customs value of a shipment on an FOB, CFR, or CIF basis from goods, freight, and insurance — the figure the duty rate is applied to
Trade Currency Converter
Convert an invoice value at a rate you set, with an optional bank or FX margin, to price an import in your own currency before you commit to the order
Volumetric Weight Calculator
Turn carton dimensions into volumetric (dimensional) weight and compare it with the actual weight to find the chargeable weight a carrier will bill you on
Container Load Calculator
Enter carton size and quantity to see how many fit a 20ft, 40ft, or 40ft high-cube container, the fill percentage, and how many containers a shipment needs
Trade & Customs Museum
Step into an illustrated museum of world trade — the ports and harbours where ships load and unload, the steel containers and cargo vessels that reshaped freight, the customs houses, tariffs, and bills of lading that govern what crosses a border, and the Silk Road, canals, and merchant companies that built global commerce, each in its own gallery. Get to know the history and the machinery behind every shipment that moves.
Tour the museum →From the Trade Journal
Fresh guides on customs duties and clearance, HS classification, landed cost and Incoterms, freight and containers, plus plain-language explainers on importing and exporting across borders.
Understanding the Basics of Port Entry Rules
Understanding the Core Components of Modern Port Facilities
Navigating Global Trade: A Deep Dive Into Customs Brokers’ Role at Ports
The Critical Role of Seaport Entry in Global Trade and Maritime Security
The Strategic Crossroads: Understanding Land Borders in Global Connectivity
The Crucial Role of Security Checks in Modern Port Entry Systems
Keep Learning
Plain-language explainers on customs and clearance, duties and tariffs, shipping and freight, and trade and logistics — everything you need to read the numbers behind a shipment and clear the border with confidence.
Visit the Learn hub →