Amazon Product Profitability Calculator
Monthly profit and return on the capital it ties up.
Amazon revises fee schedules at least annually and adds new surcharges more often. These defaults are a starting point — the figures in your own fee preview are the ones that describe your ASINs.
Monthly profit
$3,481
$9.95 per unit on 350 units
Return on capital is the figure that ranks products against each other, not margin. This one returns 38.7% a month on the $9,000 it ties up — compare that against your other ASINs before deciding where the next reorder goes.
How the Amazon Product Profitability Calculator works
Ranking products by margin picks the wrong ones. What matters is how much profit each ASIN returns per pound of capital it locks up, because capital is the constraint that actually limits how fast an Amazon business can grow.
Not financial advice. Marketplace fees change, and they vary by country, plan and seller status. Every rate here is an editable default, not a quoted price — check the platform's current fee schedule before you price a product against it. This is not tax or business advice.
Frequently asked questions
How do I judge whether a product is worth selling?
Monthly profit divided by the capital it ties up in stock. A product returning 8% a month on its capital beats one returning 20% margin but turning twice a year.
What capital does a product tie up?
The stock on hand, the stock in transit, the stock on order, and the sales already made but not yet paid out. For imported goods that is frequently three to four months of run rate.
How do returns change the picture?
More than sellers expect. A returned unit costs the fulfilment fee twice, often arrives unsellable, and the advertising that won the sale is not refunded. In high-return categories they can halve net margin.
When should I discontinue a product?
When its return on capital is below what you would get putting the same money into your best ASIN, and there is no path to improving it. Sunk cost in existing stock is not a reason to reorder.