How long does it take to heal from acl reconstruction?

5-12 months, varies: This is highly variable depending on other injuries in the knee, the activity level you are returning to, and the type of surgery/graft choice used to replace your acl. In general, daily activities and sedentary work can be resumed in 2-6 weeks. Full healing of the graft varies from 6 months to 2 years. Most sports can be resumed at 6-9 months, but normal strength and function may take longer.

Multifactorial: That depends on many factors. One being the type of reconstruction you had either autograft or allograft. The type of tissue used for the reconstruction of your ligament and even your overall general health. The fastest you can return to pre-injury activities is 6 months as a general rule and as long as 9-12 months. I recommend you ask this question of your surgeon when seeing them in consult.

About a year: While some surgeons allow a return to sports at 6 months, most have sound reasons to prevent a return to sports until 9-12 months, and there are good research studies showing that a true return to prior performance takes one to two years, if at all. Timing of "healing" depends on what you are trying to get back to doing.