Cavendish, who still needs four Tour de France stage wins to draw level with 34 of Merckx, said the crash motivated him to come back stronger next year.
"The stage I crashed in, I'm still pretty confident I would have won it," Cavendish told the Times.
"I believe I’m the best and I believe I will be for a fair few more years. It’s given me the confidence to keep going."
"People would argue that I only win sprint days so (Merckx’s) mountain days mean more...but a number is a number and it gives me a target...and that’s a target I can realistically think about."
Cavendish said he has some unfinished business with the Olympics, having claimed a silver in the omnium at last year's Rio Olympics.
With the two-man Madison event returning in Tokyo in three years' time, Cavendish, a three-time champion in the discipline, is bidding to add another medal to his collection.
"Before this year I wasn't sure if this was my last contract," he says. "And then the Madison was announced and I thought, 'Right I'm going to go to 2020.'"
Cavendish is hoping to recover in time to compete in the Tour of Britain starting on Sept. 3.
