The length of time for earning a master's degree in business depends on the school, type of program, prerequisite requirements and whether attendance is full or part time. A Master of Business Administration, or MBA, degree can take up to 2 years to complete full-time, while a part-time MBA can take up to 8 years, notes Rutgers University. The Master of Science in Management, another type of business degree, program from the University of Notre Dame, on the other hand, takes just 10 months of full-time study, as of 2015.
Some schools also offer dual business master's degree programs where students earn two master's degrees. Stanford University, for example, offers a 2-year, full-time program where students earn both Master of Business Administration and Master of Arts degrees.
Some business master's programs require prerequisites before beginning the actual coursework, so it's important to consult the specific school for program length information for a specific business degree.