Cost of living in Hamilton (New Zealand) is 55% more expensive than in Addis Ababa (Ethiopia)
This comparison has some inconsistent or sparse data. It already provides a reliable comparison but it is not bullet-proof. It is based on 871 prices entered by 104 different people.
For example, you would need at least 169,042 Birr (NZ$9,128) in Hamilton to maintain the same standard of living that you can have with 109,000 Birr in Addis Ababa.