It is hard to give a fixed cost of fleet managers as it varies depending on different aspects like experience, scale and scope of business etc. There are two options to employee fleet managers, hiring them as an employee or outsourcing. The average salary range of fleet managers in the US. ranges from $75,704 and $107,284 per year. If you compare it with the cost of fleet management software that ranges from 35000$ to any value depending on the number of vehicles.