1. Go to the Google AdWords cost-per-click estimator tool.
2. Enter the keyword or phrase you want to estimate the cost of using in a Google AdWords campaign.
3. Enter the security code and click the 'Estimate' button.
4. Find the 'Summary' box located on the right side of the estimator tool. The summary box displays the average estimated CPC. This figure represents the average estimated cost per click that you can expect to pay for your Google AdWord.