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Full HTS coverage
All 97 chapters of the US Harmonized Tariff Schedule, searchable by code and browsable by heading.
Know the duty before you ship.
Instant US tariff estimates by HTS code — free, no sign-up, powered by the official Harmonized Tariff Schedule.
23,193 HTS lines·97 chapters·updated 2026-10-09
Built for exporters
Everything you need to price landed costs with confidence.
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Instant estimates
Ad valorem, specific and compound rates calculated against your shipment value in one click.
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Origin-aware results
General rates plus preference and trade-remedy context for every major sourcing origin.
Frequently asked questions
What is an HS code?
A standardized 6-to-10-digit number that classifies a traded product for customs and tariffs worldwide.
How do I find the right HS code for my product?
Browse by chapter on our HS code index, then match the heading to your product's material and function.
Is the ExportSonar tariff calculator free?
Yes — completely free, no account required.
Do tariff rates differ by country of origin?
Yes. General and special rates depend on origin, and trade agreements or remedies can change what you pay.
What is the difference between ad valorem and specific duties?
Ad valorem is a percentage of value; specific duty is a fixed amount per unit. Many lines combine both.
How current are the rates shown?
Rates come from the official US Harmonized Tariff Schedule and are refreshed regularly; always verify before entry.