Usually people have no idea how much they can earn from Google. To make money online, it is a very good way that you setup a website and start earning from it.
Nobody knows how much Google gets per click from the advertisers and what percentage it is going to give you but this is how you get it and you have nothing to do with that.
If you like to make money with this way, you can participate in the program which is called Google Adsense but if you don't like it or hate, you can simply put no ads to your website. You have your own choice.
If you want to see how much you can earn from Google Adsense, you need to check some very small things and then you can guess finally:
1) Your earnings depend on the content of your website on which you have put Google Adsense ads. If you have put ads on the content for which the relevant ads are good, you will be paid good, if the ads are not good enough, you get paid less. See high paying keywords, do a search in Google.
2) High paying keywords never remain the same all the time. They do change and you cannot be getting most from Google, because it depends on Adwords bids. The process can be explained in some simple steps which are:
i) Google Adwords is a service using which Google gets ads from people. It gets ads from them and displays them on websites.
ii) Adwords gives you the ability to pay in many currencies and you have choice according to your budget that how much would you be paying to Google for displaying ads. Your ads get importance if you pay more, so people who want quick visitors, use to pay more to Google. If you get their ads on your website, you get paid more.
iii) How much traffic do you have? It is very important to know if you want to get paid, you have to have more traffic on your website or blog for this.
iv) If you have a good source of traffic, for example if most of your visitors use to come from search engines because of your good SEO, then you get paid more. Not because of the ads you have displayed and Google also does not take care of this fact too much in paying you, but usually visitors coming from search engines do click on ads because of two reasons:
a) Simply because the ads are attractive, they are trying to find the same information on your website and the ad is related to their interest.
b) They are not familiar with your website and thus don't have any idea where the ads are and where is the original content of the website is.
3) How much you can earn depends on your CTR too. See the
definition of CTR. It depends on how many of your visitors click on the ads.
4) You can calculate your earnings on the basis of how much you have earned in one month and how many clicks were made. Just divide earnings on the value of no. of clicks you got. It will tell you how you earn per click. Also if you see how many visitors are going to click on ads in your website, you can also calculate the percentage of visitors clicking on the ads. You can also make it better with having more traffic to your website.
Nobody can exactly tell what he will earn tomorrow, but you can always guess and plan to do well in future.