How to find the CPC of a Keyword

The best place to find the CPC of a keyword is Google itself. Google Adwords has a keyword tool called the “Sandbox”.

Here is a link to Google Adwords Keyword Tool (Sandbox) :
https://adwords.google.com/select/KeywordToolExternal

Google Adwords keyword tool (Sandbox) in action

You can use this keyword tool to calculate the CPC of a keyword.
Sandbox can also be used to find a list of keywords similar to or related to a keyword of your choice. Not only that Sandbox also gives you the CPCs of each of these related keywords along with the keyword of your query.

For example when queried for the CPC of the keyword phrase “Google Adsense” the Google Adwords Keyword Tool gives a list of keywords/keyword phrases :
Google Adsense, adsence, Adsense program, Adsense software, Adsense tips, goggle Adsense, pay per click, adcents, adwords, Adsense help, what is Adsense, gogle adsene, Adsense blog…………………..a Total of 184 such keywords along with their respective CPCs.

Note : CPC is also called PPC ( Pay Per Click)