How many bottles of water equal 1 gallon? i was told to drink 1 gallon of water everyday to get in shape and i dont know how many bottles tht is and is tht a good idea?How many bottles of water equal 1 gallon? i was told to drink 1 gallon of water everyday to get in shape and i dont know how many bottles tht is and is tht a good idea? 6 following 11 answers 11 Report Abuse Are you sure you want to delete this answer? Yes No