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Profit & Breakeven ROAS Calculator

Work out your real profit per sale, breakeven ROAS, and max ad spend — right in your browser. No upload, no sign up, completely free.

Amazon referral fee, Etsy fee, etc. Leave at 0 for your own store.

Packaging, inserts, returns buffer — whatever else applies per sale.

$15.82Profit per unit (before ads)
52.8%Margin (before ads)
1.90xBreakeven ROAS
$15.82Max ad spend / sale

Profit at different ROAS levels

ROASAd spend / unitProfit / unitNet margin
1x$29.99-$14.17-47.2%
1.5x$19.99-$4.17-13.9%
2x$14.99$0.832.8%
2.5x$12.00$3.8212.8%
3x$10.00$5.8219.4%
4x$7.50$8.3227.8%
5x$6.00$9.8232.8%

Work backward from a profit target

You need 2.77x ROAS — spending up to $10.82 per sale on ads.

How the Profit & Breakeven ROAS Calculator works

This tool runs the math entirely inside your browser as you type — product cost, shipping, payment fees, and platform fees against your selling price. Nothing is sent to a server, and nothing you enter is stored.

Best for

  • Dropshippers and ecommerce sellers checking real profit before scaling ad spend
  • Figuring out breakeven ROAS and max cost-per-acquisition before launching a campaign
  • Comparing profit at different ROAS levels before deciding on a daily ad budget

Good to know

  • This estimates unit economics from the numbers you enter — it can’t account for returns, chargebacks, or ad platform fees you haven’t included yourself
  • Breakeven ROAS assumes a consistent selling price and cost structure — bundle deals or variable pricing need their own calculation
  • This isn’t financial advice — always sanity-check important pricing decisions against your actual order data

Frequently asked questions

What is breakeven ROAS?

The minimum return on ad spend needed to cover your costs at zero profit — spend beyond that and you’re losing money on the sale.

Does it factor in payment processing fees?

Yes, with an editable default of 2.9% + $0.30, plus an optional marketplace or platform fee field.

Is my pricing data stored anywhere?

No — every number stays in your browser and disappears when you close the tab or click Clear.

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