You will spend more money on living costs in Paris and London, while it would be cheaper to live in Lisbon or Athens. Rome, however is on the same price level as Barcelona.

The monthly expenses add up to approximately €1400 to €1600, but this depends very much on the cost of your accommodation. Don´t forget to calculate a bit more money for the beginning, as you have more singular expenses i.e. the deposit for accommodation and startup costs (see below).

If you plan on staying in Barcelona for more than just a month or three, here is a rough outline of the living expenses you can expect to pay. They are quite conservative and you can probably adjust to your own lifestyle. :)

All amounts are in Euros.