Cost per click (CPC) is the amount paid to the ad platform every time someone clicks your ad. It’s a crucial metric for managing ad campaign budgets effectively and maximizing overall performance. Google Keyword Planner and a keyword cost estimator like Semrush’s Keyword Magic Tool can help determine the cost of Google Ads keywords. This process involves finding relevant keywords with reasonable search volume and low competition, which can be done using Semrush’s Keyword Magic Tool. Additionally, continuous testing and refining of keywords is crucial to ensure that the most effective terms are used in your campaigns.