Dropshipping break-even ROAS calculator

The calculator Your break-even return on ad spend

Knowing the ROAS you have to beat before you spend is the first discipline in Dropshipping: Basics →

How to read it The line every ad has to clear

ROAS is return on ad spend — revenue divided by what you paid to advertise. A ROAS of 3× means every $1 of ads brought back $3 in sales. On its own that sounds healthy, but it tells you nothing until you know the line you have to clear. That line is your break-even ROAS: the exact return at which the profit each order makes before advertising just covers the ad cost, so you finish level — no gain, no loss.

Above that ratio the ads are covering these costs; below it they are not, however busy the store looks. Note this is break-even on the variable costs you entered — it does not include returns, discounts, chargebacks or fixed overhead, so treat it as a floor for the ad math, not a full profit guarantee. A break-even ROAS of 1.86× means every $1 of ad spend must bring back at least $1.86 in revenue just to break even. Beat 1.86× and you profit; fall under it and you are paying to give the product away. This calculator hands you that threshold up front, so you set targets against a real line instead of a hopeful one.

The formula, in full

Gross profit before ads = selling price − product cost − shipping you pay − (selling price × fee ÷ 100) − the fixed fee per order − other cost per order. That is what one sale leaves in your hand before you spend a penny on ads. Profit margin before ads = gross profit before ads ÷ selling price × 100 — the same figure as a share of the price. Break-even ROAS = selling price ÷ gross profit before ads: the multiple of ad spend you must earn back so that margin exactly pays for the advertising.

A worked example

A $29.99 product costs $9.00 from the supplier, you cover $4.00 of shipping, the payment processor takes 2.9% + 30¢ ($0.87 + $0.30 = $1.17 on this sale), and there are no other per-order costs. Gross profit before ads is 29.99 − 9.00 − 4.00 − 1.17 − 0 = $15.82, a margin of 52.8%. Break-even ROAS is 29.99 ÷ 15.82 = 1.90×. So any campaign returning more than $1.90 for every $1 spent is profitable; anything under it quietly loses money on each order, no matter how many you sell.

Edge cases the calculator handles

• A product that cannot profit before ads — where costs, shipping and fees meet or exceed the selling price — shows "—" for break-even ROAS. There is no achievable break-even: no amount of ad efficiency fixes a product that loses money before a single ad runs. Fix the price or the costs first.
• The thinner the margin, the higher the line. A slim gross profit pushes break-even ROAS up fast, because a small slice of the price has to be earned back many times over. A healthy margin pulls the line down toward 2× and below, where real campaigns can live.

Common questions

Why does a lower margin need a higher break-even ROAS?

Because break-even ROAS is the selling price divided by the profit each sale makes before ads. When that profit is a small slice of the price, you have to earn the price back many times over the profit to cover the same spend — so the multiple you must clear climbs. Widen the margin and the line drops.

Should I aim to run right at break-even?

No — break-even is the floor, not the target. At exactly your break-even ROAS you make nothing; every dollar of profit lives above that line. Use this number to set a minimum you refuse to run below, then aim comfortably clear of it so returns, ad-platform swings and slow days still leave you in profit.

Is this financial advice or a guarantee?

No. It's arithmetic on numbers you enter, not financial advice. What you actually earn depends on the product, the ad platform and buyers, none of which this box controls. It simply tells you the return you have to beat before advertising can be called profitable.