Cost of living in Kalisz (Poland) is 5% cheaper than in Aguadilla (Puerto Rico)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 46 prices entered by 11 different people.
For example, to keep the same standard of living that would require $4,100 in Aguadilla you would need to make just about $3,901 (13,332 zł) in Kalisz.