Free Amazon FBA tool
Amazon FBA Launch Cost Calculator
Peak capital, break-even month, ROI, and a 3-year P&L forecast for your Amazon FBA launch. See what you need before you spend a dollar.
Peak capital
$30k
Peak cash required before the business turns cash-positive
You net (illustrative)
+$412k
Net cumulative profit (36 months, illustrative)
Month 1
Choose your plan inputs
Set price, cost, market size, and ad intensity using the controls.
Month 3
First inventory order
Place your first inventory order: 1,279 units, about $8k landed.
Month 5
Go live and advertise
Listings go live; ads run toward ~25% TACoS at launch.
Month 7
Peak capital need
Maximum cash tied up before payouts catch up: about $30k.
Month 12
Cash break-even
First month cumulative net cash flow turns positive.
Month 24
Stabilizing profit
Net profit in month 24 is about +$15k, illustrative.
Month 36
Brand value snapshot
Illustrative brand value of $839k based on the valuation multiple.
Products in niche
How many SKUs you run in this niche.
3
Selling price
Average selling price before promos.
$30
Landed cost
Landed cost per unit including freight and duties.
$6.50
Advertising (TACoS target)
Target TACoS at launch; the model decays spend as you gain organic rank.
25%
Total profit (36 mo.)
$412k
Business value
$839k
Illustrative, based on a multiple of trailing net profit
ROI
4,155%
On peak capital invested (illustrative)
Cash break-even
Month 12
Profit and cash over time
Cumulative profit
Cash on hand
Financial statement (illustrative)
Launch budget, break-even, and forecast
It takes your launch inputs: sell price, product cost, ad spend, market size, and growth. It turns them into a month-by-month 3-year forecast. You get the peak capital you need, your cash break-even month, ROI, and cumulative net profit.
That is exactly what the estimator computes. Peak capital is the most cash you will ever have tied up at once. That is inventory orders, Amazon fees, and ad spend, minus the revenue that has already come back. That figure, not your first purchase order, is what your launch costs to survive. Move the sliders and watch it change in real time.
It is the first month your cumulative cash flow turns positive. By then profits have paid back every dollar spent on inventory, fees, and ads. Until then, the chart shows how deep the cash trough gets. Realistic scenarios land between month 8 and month 18. A break-even before month 6 usually means the inputs are too optimistic.
A 15% referral fee and $5.50 FBA fulfillment per unit. Then $0.75 monthly storage per unit, $0.35 inbound shipping per unit, and a 1.5% returns rate. The full list is in the assumptions panel below the sliders.
Launches lean on ads early. Total advertising cost of sale, or TACoS, starts high while reviews build. It tapers as organic rank takes over, and the estimator models that taper. Cutting ads too early slows rank growth and pushes break-even out.
You pay for the next inventory batch while the current one is still selling. Cash keeps leaving even when the month is profitable. Faster growth means bigger, earlier reorders. Growth raises peak capital before it lowers it.
Price. Small price moves swing the outcome more than any other input. An extra dollar of margin flows straight to monthly profit and pulls break-even forward. Test price points here before locking in your sourcing quote.
Month one is always ugly, and launches are judged over the year, not the first weeks. The 3-year forecast shows the shape that matters. How deep the cash trough goes, when it turns, and what stable-state profit looks like.
The numbers are illustrative, not a guarantee. They use realistic US-marketplace defaults, and every driver is adjustable, so stress-test pessimistic and optimistic scenarios before you commit capital.
Yes, completely free, with no account or credit card required. It runs entirely in your browser and you can rerun scenarios as often as you like.