Money
Marketing Metrics Calculator — CTR, CPC, ROAS & LTV
Calculate CTR, CPC, CPM, CVR and CPA from your ad spend, impressions, clicks and conversions. LTV/CAC analysis also computes lifetime-based ROAS, ROI and payback period.
[[ labels.section_campaign ]]
| Ad Spend |
$
|
|---|---|
| Impressions | |
| Clicks | |
| Conversions |
[[ labels.section_ltv ]]
| Average Order Value (AOV) |
$
|
|---|---|
| Annual Purchase Frequency |
×/yr
|
| Customer Lifetime (Years) |
yr
|
| Gross Margin |
%
|
| Customer Acquisition Cost (CAC) |
$
|
Break-Even ROAS by Gross Margin
The minimum ROAS required for profitability is determined by your product's gross margin. The lower the margin, the higher the ROAS you need.
| Gross Margin | Break-Even ROAS | Break-Even Revenue on 100k Ad Spend |
|---|---|---|
| 20% | 500% | Ad spend 100,000 → Break-even at 500,000 revenue |
| 25% | 400% | Ad spend 100,000 → Break-even at 400,000 revenue |
| 30% | 333% | Ad spend 100,000 → Break-even at 333,000 revenue |
| 35% | 286% | Ad spend 100,000 → Break-even at 286,000 revenue |
| 40% | 250% | Ad spend 100,000 → Break-even at 250,000 revenue |
| 45% | 222% | Ad spend 100,000 → Break-even at 222,000 revenue |
| 50% | 200% | Ad spend 100,000 → Break-even at 200,000 revenue |
| 60% | 167% | Ad spend 100,000 → Break-even at 167,000 revenue |
| 70% | 143% | Ad spend 100,000 → Break-even at 143,000 revenue |
| 80% | 125% | Ad spend 100,000 → Break-even at 125,000 revenue |
Break-even ROAS = 1 ÷ Gross Margin × 100. If ROAS falls below this threshold, ad spend exceeds gross profit and the campaign operates at a loss. Enter your gross margin in Section 2 to see a Profitable / At a Loss verdict on the lifetime ROAS card.
Tips
- CTR benchmarks differ by format — search: 2–5%, display: 0.05–0.5%, social: 0.5–1.5%. Compare yours against these ranges to identify where creative or targeting improvements are needed.
- ROAS 100% means revenue equals ad spend — not profit. True break-even is 1 ÷ gross margin: at 40% margin you need ROAS 250%. High ROAS with a thin margin can still mean a net loss.
- A 3:1 or higher LTV/CAC ratio is the industry benchmark for healthy unit economics. If yours is near 1:1, acquisition costs are eroding profit — consider growing LTV or cutting CAC.
- A low CPA isn't always ideal. Judge ad efficiency by CPA relative to LTV, not CPA alone — premium products can profitably sustain a higher cost per acquisition.
- Longer payback periods strain cash flow. SaaS and subscription benchmarks target 12–18 months. If yours exceeds this, look at raising prices or reducing churn to shorten recovery time.
Frequently Asked Questions
Side Note — Why a Profitable ROAS Can Still Mean Losses
The figure "ROAS 300%" means your ads return three dollars in revenue for every dollar spent. That sounds strong — but with a 30% gross margin, three dollars of revenue leaves only $0.90 in gross profit against the $1.00 spent, a net loss of $0.10 per dollar. Exceeding ROAS 100% does not guarantee profitability. The real break-even is whether ROAS exceeds 1 ÷ gross margin × 100: at 20% margin you need at least ROAS 500%; at 50% margin, ROAS 200%.
The LTV/CAC metric has its roots in the SaaS (subscription software) industry. Venture capitalist David Skok and others popularized the "≥ 3:1" benchmark in the early 2010s as a near-universal standard for evaluating SaaS startups. It has since spread across e-commerce, mobile apps, and B2B services alike. That said, 3:1 is a guideline, not a hard rule — high-growth companies often deliberately invest at a 1.5:1 ratio to aggressively acquire customers and capture market share before optimizing for margin.
One of marketing's biggest pitfalls is attribution — deciding which ad deserves credit for a conversion. When a user touches search ads, display ads, social ads, and organic search before buying, ROAS calculations shift dramatically depending on the model used. This calculator assumes last-click attribution, giving full credit to the final touchpoint. In practice, consider exploring Google Analytics 4's data-driven attribution model for a more balanced view of each channel's true contribution.