Cost of living in Koblenz (Germany) is 67% more expensive than in Zhengzhou (China)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 137 prices entered by 14 different people.
For example, you would need at least 16,744元 (€2,126) in Koblenz to maintain the same standard of living that you can have with 10,000元 in Zhengzhou.