For a quick and easy solution to convert MBOX to PST files, there are so many professional software present in Web that easily transfer or move MBOX files of various mail client to Outlook. I would like to recommend such a software called Kernel for MBOX to PST converter, which can be downloaded as free trial from here http://www.mboxtopsts.com/
MBOX to PST Converter is the most recommended utility that can instantly export the MBOX file to PST format without altering any information. This utility is fully compatible with more than 30 MBOX based email clients such as Thunderbird, Eudora, Mac Mail, etc.
Here users can efficiently export the bulk files of MBOX to PST in the batch format with all the data items. Moreover, it is an independent utility that can perform well without Outlook installation also.
Learn more about this tool at:- http://vooksoftware.com/mbox-to-pst/