Break-even ROAS calculator
Know what an order can afford before you scale. Calculate your break-even ROAS and maximum acquisition cost from your own store economics.
Hypothetical inputs — replace with your own
Start with one average order.
Use USD throughout. Exclude sales tax and use your order value after discounts.
Revenue per order, before refunds. Include shipping charged to the buyer.
Your landed goods cost, including packaging and fulfillment handling.
What you pay to deliver the order, including any shipping subsidy.
Effective percentage of order value. Include fixed transaction fees in this rate.
The share of original revenue you expect to refund, not the share of orders.
No email required. Your inputs stay in this calculator and are not submitted.
YOUR BREAK-EVEN POINT
Revenue for every $1 spent on ads
Based on original order revenue, before refunds. A higher target leaves more room for overhead and profit.
- Maximum break-even CPA
- $40.00
- Contribution margin
- 40%
Ad cost per acquired order, before overhead and profit.
Contribution as a share of original order value.
Where one order goes
- Revenue after refunds
- $95.00
- Product + shipping costs
- −$52.00
- Payment fees
- −$3.00
- Left for ads, overhead + profit
- $40.00
Results update as you change the inputs.
The math, made visible.
A profitable order needs to cover more than the product itself. This calculator subtracts the variable costs you enter before working out what is left for advertising.
- Contribution per order
- Order value × (1 − refund rate) − product cost − shipping cost − payment fees
- Break-even ROAS
- Original order value ÷ contribution per order
- Maximum break-even CPA
- Contribution per order
A worked example: 2.50×
A hypothetical $100 order, with $45 in product costs, $7 shipping, 3% payment fees and 5% refunded revenue leaves $40 before ads. Spending $40 to acquire that order produces $100 ÷ $40 = 2.50× ROAS. That is break-even before fixed overhead, not profit.
Use the same revenue basis.
- ROAS here uses original order revenue before refunds. If your reporting tool uses net revenue after refunds, its ROAS target will differ. In the worked example, the net-revenue equivalent is $95 ÷ $40 = 2.375×.
- Goods, shipping and payment fees are treated as incurred on every order, including refunded orders. Adjust your inputs if your real cost recovery is different.
- The estimate excludes fixed overhead, agency or software fees, income taxes, chargebacks and repeat purchases. Add a margin above break-even to fund those costs and your profit target.
- This is a planning estimate using your assumptions. It does not predict campaign results or connect to your Adnoxx account.
Put the target to work.
Connect unit economics with a measurement plan and a disciplined approach to growth.