Save. Jay Paul/Getty Images News/Getty Images. A master's degree takes anywhere from one to three years to complete, depending on the type of degree and the amount of time you can devote to your studies. It's a sizable investment of time and money, but in many professional fields, it's the degree that can open doors.ave. Jay Paul/Getty Images News/Getty Images. A master's degree takes anywhere from one to three years to complete, depending on the type of degree and the amount of time you can devote to your studies. It's a sizable investment of time and money, but in many professional fields, it's the degree that can open doors.