Cost of living in San Luis Obispo, California (United States) is 68% 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 393 prices entered by 25 different people.
Detailed prices for each city individually
For example, you would need at least 元13,911 ($2,210) in San Luis Obispo, California to maintain the same standard of living that you can have with 元8,300 in Zhenjiang.