Tariff Calculator

Tariff Calculator is a web-based tool that estimates US import duties and customs tariffs by matching Harmonized System codes, country of origin, and goods value, helping businesses avoid costly surprises.

What is Tariff Calculator?

Tariff Calculator is an online simulator for US import duty and customs tariff estimation. It takes a product's HS code, country of origin, and value as input and returns estimated duties, taxes, and fees. The tool runs on the web at Tariff Calculator and is developed by Synnax Studio. It uses public tariff data from official government sources to provide accurate estimates, though final amounts are determined by customs authorities.

Key Features

• HS Code Library – Access an extensive, up-to-date database to quickly find and match the correct Harmonized System codes for your products.
• Cost Simulation – Calculate total import costs including duties, taxes, and fees based on the HS code, origin country, and goods value.
• History & Export – Save calculation history and export results as CSV files for record-keeping and compliance.
• Developer API – Business plan subscribers can make up to 2,500 API calls per month to integrate tariff estimates into their own workflows.
• Ad-Free Experience – Pro and Business plans remove advertisements from the interface.
• Unlimited Queries – Paid plans allow unlimited daily queries, while the free plan is limited to 5 queries per day.
• Email Support – Paid plans include email support, with priority support for Business plan users.

Who is it for?

• E-commerce sellers importing goods to the US – they use the calculator to budget for duties and avoid surprise fees.
• Logistics coordinators – they estimate customs costs quickly without manual cross-referencing, saving hours.
• Supply chain analysts – they rely on accurate, fast estimates to improve cost predictability and reduce compliance risk.
• Developers building trade-related applications – they can automate tariff lookups via the Business plan API.

What can you do with Tariff Calculator?

• Estimate import duties for a single product: Enter the HS code, country of origin, and value to get an instant duty estimate.
• Compare costs across different origin countries: Change the origin to see how tariff rates vary.
• Export calculation history: Download CSV files of your past calculations for auditing or analysis.
• Integrate tariff data into your own systems: Business plan users can make up to 2,500 API calls per month to build custom workflows.

Pricing

Tariff Calculator uses a freemium model with three tiers:

• Free – 5 queries per day, no history, no export, no API, no email support.
• Pro – $39/month or $29/month (yearly billing), unlimited queries, ad-free, unlimited history, CSV export, email support.
• Business – $69/month or $49/month (yearly billing), everything in Pro plus 2,500 API calls per month and priority email support.

Pros and cons

Pros:

• Uses official government tariff data for accurate estimates.
• Saves time compared to manual HS code and duty rate research.
• Helps avoid unexpected fees and shipment delays by providing upfront cost visibility.
• Supports data export for record-keeping and compliance.
• Offers a free tier for occasional use.

Cons:

• Final duty amounts are determined by customs authorities and may differ from the estimate.
• Free plan is limited to 5 queries per day and lacks history and export.
• Does not provide legal advice or act as a customs broker.

FAQ

Which countries are supported by the calculator?

All countries are supported except Russia, Belarus, Cuba, and North Korea.

How accurate are the calculation results?

The calculator uses public tariff data and structured rules to provide estimates, but final duty amounts are determined by customs authorities and can differ based on classification, valuation, origin, and supporting documents. It is an estimation tool, not a customs broker or legal advisor.

What information is needed for a calculation?

You need the Harmonized System (HS) code of your product, the country of origin, and the value of the goods.

What's the difference between the free and paid plans?

The free plan offers 5 queries per day with no history, export, API, or support. Paid plans provide unlimited queries, ad-free experience, history saving, CSV export, and email support. The Business plan adds API access and priority support.

How is access delivered after payment?

Tariff Calculator is a digital service. After payment, paid features are activated in your online account immediately.