Cost of living in Brisbane (Australia) is 143% 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 2,100 prices entered by 278 different people.
For example, you would need at least 15,544 zł (AU$5,639) in Brisbane to maintain the same standard of living that you can have with 6,400 zł in Łódź.