How many today can get experienced web developer?

Multiply the rate of $ 20 per hour for the number of working hours. Effectively the programmer can work about 8 hours a day. $ 160 a day. 3800 dollars - have a proven developer with a bunch of customers.
However, always available-orders are rare. So half the time people can spend on contracts and on competition — because there are those who are willing to work for$ 15 than "idle".

working all day and night, you can earn a ticket to the nuthouse.
working freelance alone — it all depends on your ability to sell, but freelance only in the case if you can earn more or the same amount as in the office.
depends on the country, Minsk NORMAL programmer not less than 1k, in Kiev a little more in the Peter 1.5-2k in the 2k. The upper border is no longer dependent on programmers ' skills, but 3-4k is the people, if well versed in business processes or holodah, probably even more.

If you choose what to do in the future and earn a decent living, then don't choose programming only because of the possible earnings. What would be a successful programmer (web developer) you need to be a fan of this. This, to some extent, lifestyle. If you don't get a buzz from the process, it is unlikely that you will succeed to achieve anything. This probably applies to almost all areas, but programming in particular.
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And to web developer as they want. From the work of the code monkeys for food, to create a successful startup and sell it for 100 500 thousand million. And important here is not just experience and qualifications.

Working all day you will earn 0.
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And so... experienced web developer and an experienced freelancer — two big differences. Because the main problem in freelancing is to find a customer, and then another, and receive from him the money for the project. To make the actual project a lot easier ^^ and the price in 90% of cases depends on the "as agreed".
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Monthly income from 0 to 5000. Like this.

From zero to infinity, it all depends on chance and luck.

Moscow ~100k

You know, it's a Ghost issue. Web developer — web developer alike. Depends on the classification, skills and experience. On average, a good developer in Moscow receives between 50 000 and above.