According to Baidu map query, the distance from Wuxi to Changshu is about 73 kilometers. Self-driving via Tai Su Expressway and Kuncheng Expressway. The whole journey 18 traffic lights takes about an hour.
To go to Changshu from Wuxi, you can also choose to take a long-distance bus from Wuxi Bus Station to Changshu via Tai Su Expressway, and the whole journey takes about 1 hour for 30 minutes.