> I am a single person, a typical guy, no girlfriend, no night life, spend most of my time on my laptop hacking around. And most of the time, all I need is food and bed. Considering all of that, in a salary of 5000 Euros per month, how much could I save per month after my food and rent expenditures?
I'm mostly the same, and live in a medium-sized city near Berlin (Dresden). For your reference, my monthly costs are around 1200 € per month, breaking down as follows (all numbers monthly):
- rent and utilities: 420€ (for a 50 sqm apartment)
- internet: 40€ (100 Mib/s, including landline)
- TV: 25€ (most of it is the mandatory fee for public broadcasting)
- cellphone: 10€ (1 GiB monthly allowance)
- voluntary insurances: 80€ (mostly disability insurance; not including health and unemployment insurance since those are deducted from the salary before I get the payout)
- public transit pass: 50€ (valid for all modes of public transport across the entire town; I don't own a car)
- food: 300€ (I could cut a good third of that if I pre-cooked my lunch at home instead of going to restaurants for lunch with my colleagues)
The rest is small stuff (homewares, drugstore items, medicine), entertainment expenses (cinema ticket, train ticket to a hiking spot, etc.), and a monthly donation of 100 € to my local hackerspace. If I had to, I could cut the donation and the expensive lunches and go down to ~1000€ per month immediately.
But that's Dresden, not Berlin. The rent is bound to be much higher in Berlin (at least per sqm; you might find something under 500€ if you really compromise on space, but actual Berliners can tell you more about this line item than I can). Also, public transit is more expensive in Berlin because of the larger tariff zones. AFAIK, a month pass for Berlin public transit would set you back around 100€. The other expenses should be nearly identical. My educated guess for cost of living in Berlin at my standard (which presumably is somewhere around yours) is 1500€ per month.
Maybe add another 100€ for evening classes in German language, which I would definitely recommend if you're staying longer than a few months.