Cost of living in Kaliningrad (Russia) is 50% cheaper than in Zaragoza (Spain)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 152 prices entered by 28 different people.
For example, to keep the same standard of living that would require €2,700 in Zaragoza you would need to make just about €1,362 (руб 94,517) in Kaliningrad.