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 60 prices entered by 13 different people.
For example, to keep the same standard of living that would require $3,900 in Aguadilla you would need to make just about $3,716 (12,755 zł) in Kalisz.