Click-Through Rate Calculator

Practical guide

Click-through rate helps you calculate the share of impressions that produced a click. This calculator uses two inputs: Clicks and Impressions. Enter figures from the same reporting period so the result reflects one consistent slice of performance.

The calculation is straightforward: CTR (%) = clicks ÷ impressions × 100. In the calculator, Clicks is the amount of clicks you received, and Impressions is the amount of times the content was shown. The output is a percentage that shows how often an impression turned into a click.

For a simple example, 250 clicks from 10,000 impressions gives a CTR of 2.5%. You can use the result to compare different pieces of content, campaigns, or placements, as long as the inputs cover the same period.

When choosing inputs, make sure they describe the same item or campaign and are counted in the same reporting period. Mixing periods can make the result hard to interpret. It is also important to use the labels carefully so clicks are entered under Clicks and impressions under Impressions.

CTR is useful for understanding response at the impression stage, but it does not measure sales or profit. A higher or lower CTR can be informative, yet it should not be treated as a full measure of business outcome on its own.

If the calculator returns a small percentage, that simply means a smaller share of impressions led to clicks. If it returns a larger percentage, a greater share of impressions led to clicks. In either case, read the result as a click-share metric, not as a complete performance summary.