Free tool · 2026
Break-Even Frequency Calculator
CTR decays each time a user sees your ad again. At some point the cost of the next impression exceeds what it earns. Find the crossover — and set your frequency cap accordingly.
Your numbers
Pull the last 30 days from your ad platform.
Cost per thousand impressions
CTR on a user's first impression
Click → conversion
Average revenue per conversion
What % of revenue is gross profit
Each successive impression earns this % of the previous CTR. 75% is typical.
Break-even frequency
Past this point, additional impressions to the same user lose money.
Profit by frequency
| Freq | CTR | Marginal | Cumulative |
|---|---|---|---|
| 1x | 1.50% | +$0.0017 | +$0.0017 |
| 2x | 1.13% | −$0.0012 | +$0.0005 |
| 3x | 0.84% | −$0.0034 | −$0.0029 |
| 4x | 0.63% | −$0.0051 | −$0.0080 |
| 5x | 0.47% | −$0.0063 | −$0.0143 |
| 6x | 0.36% | −$0.0072 | −$0.0215 |
| 7x | 0.27% | −$0.0079 | −$0.0294 |
| 8x | 0.20% | −$0.0084 | −$0.0379 |
The model in plain English
Each impression to the same user costs you CPM/1000 dollars. The revenue from that impression is CTR × CVR × AOV × margin. But CTR drops on each successive view — that's the decay.
Break-even frequency is the impression number where marginal revenue equals marginal cost. Past that point, every additional view to the same user loses money even though you're still earning some clicks.
Why "profit-maximizing frequency" differs. The break-even is the single-impression crossover. The profit-maximizing frequency is the cumulative sweet spot — usually 1 less than break-even. Cap your frequency around the profit-maximizing point and you've captured ~95% of the available profit per user.
Pair this with the Creative Analytics pillar to learn how creative refresh cycles reset the decay curve.
Frequently asked
›What is break-even frequency?
The number of impressions a single user can see before each additional view stops being profitable. CTR drops on each repeat view (the audience becomes less responsive). Past break-even, you're paying the CPM but earning less than the cost in marginal revenue. Frequency-capping at or just below break-even keeps your incremental dollars productive.
›What's a typical CTR decay rate?
Industry studies put it at 70-85% per repeat impression (each view earns 70-85% of the previous view's CTR). Younger audiences and platforms with faster content cycles (TikTok, Snap) decay faster. Older audiences and high-consideration B2B (LinkedIn) decay slower. Default of 75% is a reasonable starting point; adjust if you've measured your own decay curve.
›How is break-even frequency different from frequency cap?
Break-even is the math; frequency cap is the policy you set in the ad platform based on the math. If your break-even is 4.2x weekly, you'd typically set your frequency cap at 3-4x weekly to stay safely profitable. Caps that mirror break-even exactly often under-perform because the model is approximate — leave a margin.
›Should I always cap frequency at break-even?
No — there are exceptions. (1) Brand awareness campaigns optimize for reach and impression count, not direct ROAS; frequency caps can be looser. (2) Retargeting campaigns to known high-intent users (cart abandoners) tolerate higher frequency because cvr is higher than baseline. (3) Launch campaigns where you need to drive initial awareness sometimes accept short-term loss for brand build. For evergreen prospecting on social, cap at break-even or below.
›How does creative refresh affect this?
Refreshing creative resets the decay curve — a new creative starts at the initial CTR again. Teams that ship 2-4 net-new creative concepts per week effectively re-baseline frequency saturation continuously. Teams that ship one creative per quarter hit break-even fast and stay there. The break-even calculation assumes a single creative running its full course; real-world creative variety extends the practical limit.
›Why is my break-even so low?
Three usual causes. (1) CPM is high relative to your unit economics — common in competitive auctions (Q4 retail, finance, real estate). (2) Initial CTR is low — usually a creative or audience-targeting issue. (3) Conversion rate or AOV are weak relative to spend — a downstream problem the calculator can't fix. Improving upstream metrics (CTR + CVR) typically buys you 1-2 frequency points of break-even.
Catch frequency saturation before ROAS drops.
Floowzy's AI Gardener watches frequency growth across every ad set in your accounts and warns you 7-14 days before it kills ROAS.