Break-Even Calculator
Three floors every product needs: the price that exactly covers your entered costs, the most you can pay to win an order, and the ROAS your ads must beat. Formulas shown, verified against the same engine.
Decimals allowed (weight, hours)
Whole numbers: this counts orders
Add fees and real selling costs
Payment or marketplace percentage
Charged once per order, however many units it contains
Per-order cost waterfall (entered costs only)
Decision numbers
"Contribution profit" here means revenue minus product cost minus the costs you entered above, and nothing else. It is not net profit: returns, packaging, tax, wages, rent and overhead are not included unless you typed them in.
Show the math
Internal math keeps full precision; only displayed amounts are rounded, half-up, at the currency's decimal places.
Floors first, targets second
Every pricing argument gets shorter when the floors are on the table. The break-even price ends "can we discount to $79" discussions in seconds. Max acquisition cost turns "should we raise the ad budget" into a number the marketing team can be held to. Break-even ROAS converts platform dashboards into a pass/fail line. Enter your cost, price and real selling costs above; the three floors appear under Decision numbers with their formulas one click away. What this page will not do is tell you the floors are "healthy": they are your numbers, and the judgment stays yours.
Break-even FAQ
What break-even numbers does this calculator produce?
Three floors, each derived from your entered costs: the break-even price per unit, below which every order loses money on the costs you listed; the maximum acquisition cost per order, the contribution left before ad spend; and the break-even ROAS, the revenue-per-ad-dollar your campaigns must exceed. Each has a visible formula in the Show the math panel.
How is break-even price calculated with percentage fees?
Percentage fees shrink whatever price you charge, so the break-even price is not just cost plus fixed fees. The formula is price = (COGS + fixed per-order costs) / (units x (1 - fee rate)): dividing by (1 - rate) accounts for the platform taking its cut of the higher price too. The calculator solves it and then verifies that contribution at that price is exactly zero.
What is break-even ROAS and why does it matter more than breakeven revenue?
ROAS is revenue divided by ad spend. Break-even ROAS is the ratio where an order’s contribution exactly pays for the ads that produced it: order revenue divided by contribution before ad spend. A product with $100 revenue and $35 contribution before ads breaks even at a ROAS of 2.86; campaigns below that lose money even when the ad dashboard looks green. It is the single most useful number for judging paid acquisition, and most margin calculators never compute it.
Does this include my monthly fixed costs like rent?
No, and it says so rather than pretending. This calculator models per-order economics: product cost, fees, shipping and acquisition. Classic break-even-units analysis, fixed monthly costs divided by contribution per order, needs your overhead numbers, which belong to a full P&L. You can still do it in one division: take the contribution profit per order from this page and divide your monthly fixed costs by it.
More free tools: Profit Margin Calculator · Selling Price Calculator · Ad Metrics Calculator · ROI Calculator