Cost of living in Mobile, Alabama (United States) is 50% more expensive than in Łódź (Poland)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 341 prices entered by 27 different people.
For example, you would need at least 10,046 zł ($2,716) in Mobile, Alabama to maintain the same standard of living that you can have with 6,700 zł in Łódź.