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CTR Calculator

The CTR Calculator divides clicks by impressions to give you click-through rate — a direct signal of how effectively your creative and targeting are working together.

Enter your total impressions and total clicks to calculate your click-through rate (CTR) as a percentage.

About CTR Calculator

Click-through rate (CTR) measures the percentage of ad impressions that result in a click. It is one of the most frequently referenced metrics in paid media reporting because it reflects the combined effectiveness of creative, copy, targeting, and placement.

The formula: (Clicks ÷ Impressions) × 100 = CTR%. A campaign with 50,000 impressions and 500 clicks has a CTR of 1.0%.

CTR benchmarks vary significantly by channel and format. Google Search ads typically see CTRs between 3% and 8% for well-targeted campaigns, with branded terms often exceeding 10%. Display and programmatic ads average 0.05%–0.3%, as passive browsing behavior makes clicks far less frequent. Paid social falls between the two, with averages typically ranging from 0.5%–2% depending on objective and creative type.

Media buyers monitor CTR for multiple reasons. A declining CTR on a previously strong campaign often signals creative fatigue — the audience has seen the ad enough times that engagement is dropping. A persistently low CTR on a new campaign may point to audience-message misalignment, weak creative, or poor placement targeting.

CTR is a directional signal, not a success metric in isolation. High CTR on a display ad means little if the landing page conversion rate is poor. Low CTR on a search campaign may still be profitable if the clicks converting are high-value. Always evaluate CTR in context of downstream metrics like conversion rate and CPA.

Pair this tool with the CPC Calculator and CPA Calculator to build a complete funnel view from impression to conversion.

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Paid Media Metrics: Key Terms, Formulas, and Definitions

Spend: Spend is the net advertising cost — the hard cost of media only. This does not include management fees, creative production, or any other service fees.
Impressions: Impressions are the number of times an ad was shown in a given channel — the total volume of ad views delivered by the advertising spend.
Cost-per-thousand Impressions (CPM): CPM is the cost of purchasing 1,000 impressions. It is the standard buying metric for display, programmatic, and streaming TV advertising. Formula: (Spend ÷ Impressions) × 1,000 = CPM
Click-through Rate (CTR): CTR is the rate at which impressions result in a click. If 1,000 ads are shown and 10 people click, the CTR is 1%. Formula: Clicks ÷ Impressions = CTR
Clicks: Clicks are the total number of times an ad was clicked. The click metric is also commonly used as a proxy for website sessions driven by paid advertising.
Cost-per-click (CPC): CPC is the average advertising cost paid per click. Formula: Spend ÷ Clicks = CPC
Conversions: Conversions are the total number of desired actions — sales, leads, form submissions, downloads, or other defined goals — attributed to the advertising spend.
Conversion Rate: Conversion rate is the percentage of clicks that result in a conversion action — a lead, purchase, download, or other defined goal. Formula: Conversions ÷ Clicks = Conversion Rate
Cost-per-acquisition (CPA): Cost-per-acquisition (CPA), also called cost-per-conversion, is the average amount of advertising spend required to generate one conversion action. Formula: Spend ÷ Conversions = CPA
Return on Ad Spend (ROAS): ROAS measures how much revenue is generated per dollar of advertising spend. A 4x ROAS means $4 in revenue for every $1 spent — but profitability depends on your margin. Formula: Revenue ÷ Spend = ROAS
Markup: Markup is the percentage added above the cost of a product to arrive at the selling price. It is calculated relative to cost, not revenue — which is the key distinction between markup and margin. Formula: (Selling Price − Cost) ÷ Cost = Markup %
Margin: Gross margin is the percentage of revenue retained after deducting the cost of goods sold. Unlike markup (which is based on cost), margin is calculated relative to revenue — the number that ties directly to advertising profitability targets. Formula: (Revenue − Cost) ÷ Revenue = Margin %
Revenue: Revenue is the total income generated from sales before any costs are deducted. In paid media analysis, revenue attributed to advertising spend is the numerator in ROAS calculations.
Budget: Budget is the total advertising spend allocated to a campaign or channel for a defined period. Budget planning typically begins with a target CPA or ROAS and works backward from desired conversion volume.

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