Transferring contacts from one email address to another

hi guys, would really appreciate your help here!

somehow my contacts have all synced with my hotmail account (which is great cos it means no need for a backup and restore come bb10) but i use gmail more now and much less of hotmail and would like to know if it is possible to transfer all of my contacts from my hotmail to gmail. Somehow i have one contact on gmail but i have no idea how it was assigned to gmail, i didnt choose any particular option when saving that number, but the rest are all on hotmail.

any help would be greatly appreciated! thank you

While in your Hotmail account export your Hotmail contacts. The export will create a .csv file. Next go into Gmail contacts and select import and select the file your just created.

thank you very much!