Commerce calculator

Landed Cost Calculator — Duty, Tax, Freight & Unit Cost

Enter one purchase order and the calculator builds the customs-value basis, duty, import tax, all-in landed total, and unit cost. Every rate remains editable for the destination and product.

CostFree

AccountNot required

ResultUpdates live

Rules reviewedAugust 14, 2026

Example values included

500 units at $18 with freight, duty, and import tax

Turn supplier price, international freight, duty, import tax, clearance fees, and quantity into an all-in landed cost per unit.

Landed total = goods + freight + insurance + duty + import tax + other fees

Start with the example ↓

Your shipment details

Updates live

Example values are filled inReplace them with your measurements or costs

The calculator applies the formula and unit conversion automatically.

Unit purchase cost

Quantity

International freight

Insurance

Duty rate

Import tax rate

Brokerage and other fees

Use this when

Questions this estimate can answer

You are comparing suppliers or import scenarios on an all-in basis.
You need to expose freight, duty, tax, brokerage, and other fees separately.
You want a repeatable unit-cost estimate before setting a selling price.

Not for

Checks you still need to make

Selecting a tariff code, origin rule, customs value, or tax base.
Assuming one duty and import-tax method works in every jurisdiction.
Replacing a customs broker's entry calculation or a binding government ruling.

Use the $19 operations workbook for batch work.

Compare quotes and keep landed cost, pallet plans, DIM checks, and margin calculations in one editable Excel file.

See the workbook ↗

Method & limits

How this estimate works

The result uses the formula below. Check the measurements, unit setting, and applicable carrier or supplier rule before using it.

Landed total = goods + freight + insurance + duty + import tax + other fees

The tax base and customs value vary by jurisdiction and product. This model uses editable percentages and is not customs or tax advice.

ReferencesU.S. Customs — determining customs value ↗WTO customs valuation overview ↗

This calculator is a planning aid, not a carrier quotation, engineering assessment, or professional advice. Verify critical figures against current supplier and carrier documentation.

Worked example

500 units at $18 with freight, duty, and import tax

Goods value: 500 × $18 = $9,000; add $1,850 freight and $120 insurance for the editable customs-value basis.
At 6.5%, illustrative duty is $713.05.
At 10% on customs value plus duty, illustrative import tax is $1,168.31; then add $340 in other fees.

ResultThe illustrative landed total is $13,191.36, or $26.38 per unit. Replace every rate and tax base with the destination's current rule.

Avoid these errors

Common mistakes that change the answer

Applying a duty rate without confirming the product classification and origin.
Using purchase price alone when the jurisdiction includes freight or insurance in customs value.
Omitting brokerage, inspection, port, bank, and destination charges.
Comparing suppliers on unit price instead of landed cost per usable unit.

A calculator can expose the arithmetic; the applicable carrier rate card, handling standard, or freight quotation still controls the real transaction.

Related tax calculation · TaxMathKit

Add or remove VAT before calculating landed cost.

TaxMathKit includes VAT add and remove modes, country presets, and a custom-rate input.

Open the VAT calculator ↗

Free to embed

Put this calculator on your site.

Paste one iframe into a logistics article, supplier portal, or internal knowledge base. The calculator stays hosted and updated by ShipMathLab.

<iframe src="https://shipmathlab.com/embed/landed-cost-calculator" title="Landed Cost Calculator — Duty, Tax, Freight & Unit Cost" width="100%" height="820" loading="lazy" style="border:0"></iframe>

Formula source on GitHub ↗

Examples and guides

8 minBuild a landed-cost model for an import order ↗

Put product, freight, customs, tax, and clearance charges on one auditable per-unit basis.

Next calculation