Murray admits that he is focused on adding to his US Open and Wimbledon Grand Slam titles rather than think about moving to the top of the rankings.
"It's tough - you have to be consistent throughout all year," Murray told BBC Sport.
"I've won the Olympics, the US Open, finished runner-up in the Australian Open and now won Wimbledon in the last year - and I'm still nowhere near.
"The goal for me is to win another Grand Slam and not worry to much about rankings."
Murray became the first British man to win Wimbledon on Sunday since Fred Perry 77 years ago.