How long will it take for a broken femur to heal?

About 10 weeks: A fractured femur should heal in about 10 weeks or so. Many factors can affect the healing time, including the health of the patient (smokers and diabetics may heal more slowly), and the type of femur fracture (shaft fracture versus hip fracture versus fracture closer to the knee), and the form of treatment may affect the healing time as well. On average, though, 10 weeks is a good estimate.

Depends: The healing time depends on he type of fracture and the age of the patient. For example, a newborn's femur would heal in 2-3 weeks. A toddler would take about 6 weeks. An adult might take 8 or more weeks.