What are CTR and CR?

CTR is Click Through Rate. It measures the effectiveness of any advertisement. It is calculated by using the simple formula below:

Example:

A campaign having 728×90 ad has served 10,000 impressions and has generated 100 clicks, so what will the CTR be of that ad?

By using the metrics above:
CTR = (100 / 10,000) x 100 = 1%
1% CTR means that for every 100 impressions there is one click.

To calculate conversion rate, we use a simple formula:

So, if 20 conversions have been made in a thousand impressions, the conversion rate will be the following:

CR = (20 / 1,000) x 100 = 2%