Cost of living in Kalisz (Poland) is 7% 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 42 prices entered by 8 different people.
For example, to keep the same standard of living that would require $3,800 in Aguadilla you would need to make just about $3,516 (12,618 zł) in Kalisz.