Landed cost is the number every import decision rests on: the true per-unit cost of goods delivered to your warehouse, covering product, freight, duty, insurance, and fees. The landed cost calculator assembles it, and the import duty calculator prices the tariff line, which for US imports can swing from 0% to well over 25% depending on the product and country of origin. Margins computed from the factory price alone are fiction.
Carriers add their own math. The dimensional weight calculator shows when a light, bulky box gets billed by volume instead of weight, and the CBM and container tools size sea freight and split its cost per unit. A packaging change that drops one size tier often saves more than a carrier negotiation.
On the outbound side, the free shipping threshold calculator finds the order value at which absorbing shipping pays for itself, and the shipping margin tools check whether checkout rates recover what carriers charge. Inbound cost and outbound price are the two ends of the same per-unit ledger.
Frequently asked questions
How do I calculate landed cost?
Add product cost, international freight, insurance, customs duty, brokerage and port fees, and inbound domestic shipping, then divide by the units in the shipment. On a typical China-to-US sea shipment, freight and duty add 15–35% to the factory price, more when extra tariffs apply. Every margin, pricing, and reorder decision should start from this number, not the supplier invoice.
What is dimensional weight and when does it apply?
Carriers bill the greater of actual weight and dimensional weight, which is length times width times height divided by a divisor, 139 for most US couriers in inches and pounds. A 12 x 12 x 12 inch box has a dim weight of about 12.4 lb, so a 3 lb pillow ships at the 12 lb rate. Light, bulky products almost always pay dimensional pricing.
Should my store offer free shipping?
Offer it above a threshold rather than storewide. Set the threshold roughly 20–30% above your current average order value: it nudges shoppers to add items while limiting how many orders you subsidize. Storewide free shipping only works when it is priced into margins; a $7 average shipping cost is nearly a quarter of the profit on a typical $40 order.
How much are import duties into the US?
The base rate depends on the product’s HS code, from 0% on many goods to 10–20% on apparel and footwear, and additional tariffs on Chinese-origin goods can add 7.5–25% or more on top. Low-value de minimis exemptions have been sharply curtailed, so budget duty on every shipment. Verify the rate for your exact HS code before pricing a product.
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