Calculate US import duties, Section 301 tariffs, and discover domestic supplier alternatives. Free, fast, and always up-to-date.
Additional tariffs of 7.5% to 100% on Chinese imports. Varies by product category. Our calculator includes all four lists plus special rates for semiconductors, batteries, and medical products.
25% tariff on steel and 10% on aluminum under national security provisions. USMCA partners (Canada, Mexico) are generally exempt. We automatically apply these rates.
Connect with 500,000+ US suppliers via BOMAtlas. Our HTS-to-NAICS mapping finds manufacturers who can produce alternatives domestically, often with competitive total cost.