Converting a van will be a different process depending on many factors, such as who and how many people will be living in the van, where they intend to live, and how much luxury they desire. The cost of a van conversion can range from under $1000 to well over $40,000. Some people choose to have a van professionally converted, but most van lifers convert it themselves in an attempt to save costs. Conversions can take anywhere from a few months to over a year.