It's very useful to know how much things cost when you are planning your trip. I've put some of the more common expenses down below with upper and lower ranges of what you might expect to pay for things when you are there. Of course, these are only estimates and only include the basics: I'm sure you could find ways to spend either far more or far less. In particular, accommodation prices are likely to fluctuate depending on the season and how far in advance you book.

I use BAM (the Bosnian currency, often written as KM also) because it is more accurate over the medium term than using another currency due to exchange rate fluctuations: you can convert BAM into whichever currency you use. (A rough estimate is 1 Euro = 2 BAM). I've not included flight costs, insurance costs, or other similar costs.