CTR (Click-Through Rate) is a digital marketing metric that measures the percentage of people who click on an ad after seeing it. It is calculated by dividing the number of clicks by the number of impressions, then multiplying by 100. CTR helps assess the effectiveness of an ad in driving engagement and is commonly used in search engine and display advertising.

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Also, check out other calculators: CPM Calculator, Break-even CPC Calculator or Media Pacing Calculator