Cost of living in Nagasaki (Japan) is 66% more expensive than in Zhytomyr (Ukraine)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 90 prices entered by 7 different people.
For example, you would need at least 46,560₴ (¥190,713) in Nagasaki to maintain the same standard of living that you can have with 28,000₴ in Zhytomyr.