Cost of living in San Luis Obispo, California (United States) is 78% more expensive than in Zhenjiang (China)
This comparison is lacking data. It provides a decent comparison, but it is not yet reliable. It is based on 424 prices entered by 26 different people.
Detailed prices for each city individually
For example, you would need at least 17,290元 ($2,496) in San Luis Obispo, California to maintain the same standard of living that you can have with 9,700元 in Zhenjiang.