can anyone tell me the average monthly costs of running a gym. ADVERTISEMENT 1.16K viewsMarch 9, 2014 0 kevin March 9, 2014 0 Comments just thinking of opening a gym and crunching some numbers. we have rent, insurance, employees, loan repayment, all figured out but dont know the other hidden expenses. any info would be greatly appreciated. thank you 7 Answers ActiveVotedNewestOldest 0 Sue0 Posted 0 Comments Taxes A good accountant Opening a gym sounds great but there are so many things that go into it, it’s not easy! You are viewing 1 out of 7 answers, click here to view all answers. Register or Login