What does your product cost by the time it actually lands?
Your FOB price is fiction until freight and tariffs are on it. Landed cost = FOB + freight + FOB x (duty % + other %), and tariffs turned that line from a spreadsheet afterthought into the one that decides whether scale is worth it. Answer a few questions and get your landed unit cost, your true gross margin, and the price move that restores what the duty took.
Landed cost is what a unit really costs by the time it reaches your warehouse: factory price, plus freight, plus duty and fees charged on the factory price. Duty is levied on the FOB value, not on retail, so every dollar you pay the factory costs you twice. Divide the gap between retail price and landed cost by the retail price and you have your true gross margin, which is the only version worth planning against.
- Formula: landed unit cost = FOB + freight per unit + FOB x (duty % + brokerage, insurance and compliance %).
- True gross margin = (retail price minus landed cost) divided by retail price. The FOB-only version most spreadsheets still run leaves the duty line out and reads higher.
- Restore price = landed cost divided by (1 minus your FOB-only margin), which is what you would have to charge to get back to the pre-duty margin.
- Inputs: retail price per unit, FOB unit cost, freight per unit, duty or tariff rate as % of FOB, other fees as % of FOB (3% is a reasonable default).
- Healthy band: 55% and up landed gross margin leaves room for marketing, fulfilment, and profit. 40 to 55% is workable at strong AOV. Under 40% the paid-acquisition model stops working, so reprice or re-source.
- Common mistake: applying the duty rate to the retail price. It is charged on what you paid the factory, and the margin math only comes out right if you calculate it there.
How the number is calculated
Landed unit cost = FOB + freight per unit + FOB x (duty % + other %). Duty is charged on the FOB value, not your retail price. True landed gross margin is (price minus landed cost) divided by price, and the tool shows the erosion versus FOB-only math, the flattering version most spreadsheets still run. It also computes the retail price that would restore your pre-duty margin: landed cost divided by (1 minus your FOB-only margin). The bands use the public DTC median gross margin, which sits in the low-to-mid 50s.
Landed cost is where the rest of the margin math starts: the profitability calculator carries it through to EBITDA, and the DTC inventory cash-flow calculator shows what the same units do to your cash cycle. All of the free DTC calculators share these benchmarks.