What Is a Good ROAS? Calculate Break-Even ROAS and Your Own Target
Shusaku Yosa
A useful ROAS target comes from your costs, margins, and payback requirements, not a universal industry percentage. Revenue ROAS equals attributed revenue divided by media spend, multiplied by 100. A 100% ROAS means revenue equals media spend; it does not establish profit break-even.
Separate ROAS, ROI, and a platform bidding target
In a fictional example, ¥500,000 revenue attributed to ¥100,000 media spend produces 500% ROAS, or 5x. That calculation does not deduct product, processing, delivery, creative, or management costs. For the basic formula, see ROAS and its distinction from ROI.
Measure | Meaning | Limitation |
|---|---|---|
Revenue ROAS | Attributed revenue ÷ media spend | Not profit or proof of incremental revenue |
ROI with a defined cost scope | Profit within that scope ÷ corresponding investment or cost | Specify the denominator and avoid double deductions |
Platform target ROAS | Desired average conversion value relative to cost | A target, not actual performance or guaranteed profit |
Google Ads Target ROAS works with reported conversion values. If those values represent estimated lead value or gross profit, the dashboard ratio is not automatically revenue ROAS. Check what value the account actually receives.
Do not subtract ad spend again from profit that already deducts it. Google's ROI example deducts production and advertising costs from revenue. The worked ROI example below uses total defined costs as its denominator.
The 1 ÷ gross margin shortcut has conditions
At a 50% gross margin, 1 ÷ 0.5 × 100 = 200%. That is a simplified threshold for recovering media spend from gross profit when there are no other additional costs. It does not establish business-wide profitability if payment, delivery, returns, management, overhead, or financing costs remain outside the calculation.
For a more explicit model, define R as relevant revenue after the chosen returns and discount adjustments, A as media spend, m as the contribution margin before advertising, and F as other incremental costs. Here, m deducts product and the selected variable costs before media spend. Do not include those same costs again in F.
- Profit within this cost scope = m × R − A − F.
- Required break-even revenue = (A + F) ÷ m.
- Break-even ROAS (%) = (A + F) ÷ (m × A) × 100.
A and m must be positive. If m is zero or negative, increasing revenue alone does not recover media spend under this model. With zero media spend, ROAS is undefined. Always label the costs covered by the threshold.
A fictional target calculation
Assume ¥100,000 media spend, a 40% pre-advertising contribution margin, and ¥20,000 other incremental costs. The margin already includes the example's product, processing, and delivery costs. The additional ¥20,000 does not duplicate them. Common overhead, taxes, and financing costs are excluded.
Objective | Required-revenue formula | Revenue | Revenue ROAS |
|---|---|---|---|
Zero profit within this scope | (¥100,000 + ¥20,000) ÷ 0.40 | ¥300,000 | 300% |
Retain ¥30,000 profit | (¥100,000 + ¥20,000 + ¥30,000) ÷ 0.40 | ¥375,000 | 375% |
Retain profit equal to 10% of revenue | (¥100,000 + ¥20,000) ÷ (0.40 − 0.10) | ¥400,000 | 400% |
For target profit amount P, required ROAS is (A + F + P) ÷ (m × A) × 100. Do not add a currency amount directly to a percentage. For target profit as a revenue share p, use (A + F) ÷ ((m − p) × A) × 100, with m greater than p.
At ¥375,000 revenue, the selected variable costs are ¥225,000. Adding ¥100,000 media and ¥20,000 additional costs gives ¥345,000 total costs and ¥30,000 profit. Total-cost ROI is ¥30,000 ÷ ¥345,000 × 100, about 8.70%. That is a different measure from 375% revenue ROAS.
Choose the value and evaluation window for the business model
Model | Value to verify | Cost and timing checks |
|---|---|---|
E-commerce | Revenue after returns, cancellations, and discounts | Product, shipping, processing, returns, creative, and management |
Subscriptions and SaaS | Revenue and gross profit from matching acquisition cohorts and periods | Retention assumptions, support, payback deadline, and cash |
B2B lead generation | Revenue linked to leads after deals close | Sales delay, lost deals, sales costs, and close rate |
There is no need to adopt an unsupported claim that all retailers require a particular ROAS range. Product and return mix can change the threshold even within one business. External comparisons need a study year, region, channel, cost scope, and attribution basis.
A low initial SaaS ROAS is not automatically safe because forecast LTV looks attractive. Separate observed gross profit from forecasts, test churn and price assumptions, and check payback time and cash availability. Do not present a mixture of predicted lifetime revenue and short-window actual revenue as one observed ROAS.
Lead-generation campaigns can be evaluated on revenue after appropriately matching closed deals. Before revenue is known, do not treat lead counts as sales. Use CPA and close-rate calculations to distinguish allowable costs, estimates, and actual outcomes.
Investigate measurement and marginal economics before reallocating
- Verify revenue or conversion-value definitions, duplicates, returns, currencies, and matching media costs.
- Align evaluation periods and separate recent results still affected by conversion delay.
- Inspect product, new-versus-existing customer, placement, and cost-scope changes.
- Estimate the additional revenue and costs from the next budget increment.
- Define an eligible population and stop rule, then test and review.
Summing attributed revenue across platforms can double-count a purchase. Attribution also does not directly prove the revenue would disappear without advertising. Separate actual economics from bidding targets and examine incremental effects where they can be measured.
A high ROAS does not prove underinvestment, and cutting a low-ROAS segment does not guarantee improvement. Use CTR, CVR, and cost comparisons to investigate the entry-to-outcome journey. Xtrategy's budget-versus-actual management can help organize monthly media, labor, and outsourcing costs before allocation decisions.