The length of alcohol rehab can vary depending on the individual’s needs and circumstances. Generally, the duration of an alcohol rehab program ranges from 28 days to six months or longer. Factors that can influence the length of alcohol rehab include the severity of addiction, the presence of co-occurring disorders, the person’s response to treatment, and their social and family support. It is important to remember that recovery from alcohol addiction is an ongoing process, and long-term support may be necessary to maintain sobriety.