cost to start a fitness center
Step 5. Write a business plan and get gym financing. Starting a gym will require both a written business plan and a loan. According to Entrepreneur, the average cost of opening a gym is $10,000 to $50,000.Lenders will not consider a business loan application without a complete business plan attached.ccording to Entrepreneur, the average cost of opening a gym is $10,000 to $50,000. Lenders will not consider a business loan application without a complete business plan attached.