The amount of walking after knee replacement surgery can vary based on several factors, such as the patient's overall health, the type of procedure performed, and the rate of recovery. However, most patients can expect to walk with the assistance of a walker or crutches for the first few days to a week after the surgery. Gradually, patients can increase their walking distance and activity level, with the goal of returning to normal activities, within 2 to 6 months after the surgery. It is important for patients to follow the postoperative instructions and rehabilitation plan provided by their doctor to ensure a safe and successful recovery.