Fractures in general heal at variable rates. This depends upon a number of variables. These include patient age, bone involved and location of the fracture in the involved bone, nutritional status, and health to name a few. Most ankle fractures typically take about 6-8 weeks to heal in otherwise healthy individuals. This often requires treatment to immobilize the ankle fracture to maintain the fracture in an acceptable position for optimal healing and function. Usually a cast is required for all or part of this time. Once the fracture is healed. Recovery time is needed to allow restoration of range of motion, strength, and function. Functional recovery enables return to sport or work at the pre-injury level with only baseline risk for further injury. This recovery phase may take an additional 6-8 weeks. These are average timelines. Some individuals may recover faster or longer again depending on the severity of injury and the above variables. Physical therapy may often be recommended to help hasten recovery. I hope this helps.
Best wishes for a successful recovery from this injury.