Turn your site traffic into a retargeting plan. Estimate your retargetable audience, monthly impressions, ad budget, clicks, conversions, and ROAS from your CPM and frequency cap — no email required.
Results update live as you type
Impressions = audience × frequency cap × window (capped at 30 days for a monthly view). All figures are estimates.
ROAS
7.00×
Proj. Revenue
$49,140.00
The retargeting window is capped at 30 days here to keep budget on a monthly view.
Real impressions depend on platform inventory and how often users browse the web.
Retargeting ROAS is typically high because the audience already knows your brand.
Retargeting re-engages people who already know you. Here are the levers that shape its reach, cost, and return.
Retargeting serves ads to people who already visited your site, app, or list. Because they have prior intent, these warm audiences convert at far higher rates than cold prospecting.
Not every visitor can be cookied — ad blockers, privacy settings, and cross-device browsing reduce your match rate. A realistic 50–70% match determines how big your retargetable audience really is.
A frequency cap limits how many times one person sees your ad per day or week. Capping at 3–5 per day keeps you top-of-mind while preventing ad fatigue and wasted impressions.
The window is how many days a visitor stays in your audience after their visit. Shorter windows (7–14 days) capture hot intent; longer ones (30–90 days) build reach but include cooler users.
Retargeting reaches qualified, brand-aware audiences, so conversion rates and return on ad spend typically beat every other campaign type — often 4:1 to 10:1 or more.
Retargeting CPMs are often a bit higher than broad display because the audience is small and valuable. Even so, the lift in conversion rate usually more than offsets the premium.
Retargeting fails more often from audience size than from creative or bidding.
Retargeting looks like the easiest win in paid media: warm audiences, high conversion rates, low cost per acquisition. The catch is arithmetic. Retargetable audiences are a small fraction of site traffic, and a budget sized for cold prospecting will burn through that small pool many times over within days.
The number that decides whether a retargeting campaign works is frequency — impressions divided by unique people reached. Get it wrong and you are not running a campaign, you are running an irritation.
| Factor | Typical impact | Why |
|---|---|---|
| Baseline retargetable share | 30% – 60% of visitors | Cookie restrictions, ad blockers and consent refusals remove the rest. |
| iOS / Safari traffic | Significantly lower | Tracking prevention shortens or blocks the identifier entirely. |
| 30-day window | Largest usable pool | The standard default; balances recency against size. |
| 7-day window | Roughly a third of the 30-day pool | Much higher intent, much smaller audience. |
| Cart abandoners | 2% – 8% of visitors | The highest-converting segment and by far the smallest. |
| Healthy frequency | 2 – 4 per week | Above this, response falls while spend continues. |
If your site gets 5,000 monthly visitors, a realistic 30-day retargeting pool is closer to 2,000 people than 5,000 — and a $2,000 monthly budget against that pool implies a frequency high enough to do real brand damage.
Without a cap, the platform will spend your budget on whoever is cheapest to reach again — meaning your most engaged visitors see the same ad dozens of times.
A homepage bouncer and a cart abandoner deserve different messages and different budgets. Treating them as one audience wastes spend on the former and under-serves the latter.
Continuing to show acquisition ads to people who already bought is the most common and most avoidable waste in retargeting.
Shorter windows convert better and exhaust faster. Longer windows sustain a campaign but dilute intent. Most accounts want both, budgeted separately.
Because the audience is small and sees ads often, retargeting creative wears out in weeks rather than months. Plan a rotation from the start.
Retargeting converts demand that already exists. If top-of-funnel traffic dries up, the retargeting pool shrinks with it — it is a multiplier, never an engine.
The same monthly budget against a fraction of the audience produces an enormous frequency. Size the budget from the pool, not from the total media plan.
Retargeting reports look spectacular because it reaches people already intending to buy. Run a holdout test before believing the reported return.
A generic brand ad shown to a cart abandoner wastes the highest-intent impression you will ever buy.
Below roughly a thousand monthly visitors, there is no meaningful pool to retarget. Fix traffic first.
The practical test is simple: divide your planned monthly impressions by your realistic audience size. If the result is above about sixteen per person per month, the budget is too large for the pool. Either cut spend, widen the window, or spend the difference on the top-of-funnel traffic that would make the pool bigger in the first place.
We build and manage retargeting and remarketing campaigns across Google, Meta, and programmatic for businesses across Canada. No long-term contracts.