Russell Crowe has finally quit his 36-years of smoking habit due to his son, Charlie, who saw him stub out a late-night cigarette.

At a frank press conference the actor, 46, hinted he smoked up to 18,000 cigarettes a year for most of his life, said smoking remained a huge temptation but one he would not go back to.

"Do the maths - I have been smoking for 36 years, I would continuously lie to myself about how much I smoked," News.com.au quoted him as saying.

"[I was] smoking 40 on an easy day, but on a day when I would be up at 4am and still up at midnight, then it was 60-plus and it just got to the point where my body was telling me I had to stop."

"The reality break was that my kids never saw me smoke and Charlie is a little older at six and is in that phase where he is sneaking up on me all the time."

"I was in my office . . . and I thought I heard my office door open and I looked around and couldn't see anything, so I had my cigarette."

"Later on I leant over to put my cigarette out and he was lying between the couch and the table and he very definitely saw me having a smoke. And that was my very last one," he added.

Source-ANI