"Federer and Nadal have made up the final for the past three years running," said Murray at the launch of his own newly-designed, monogrammed Fred Perry outfit, which he will wear at the tournament this year.
"I think I'm in the group of three or four guys that are challenging for the Wimbledon title, but are not the out and out favourites.
"Normally Queen's is quite a good benchmark of where guys are in their preparations for Wimbledon and it was a very good start for me, I played well over the two weeks.
"But Wimbledon is a totally different animal; it's over two weeks, they are best of five-set matches - and neither Federer nor Nadal were at Queens this year and I'll probably have to beat at least one of them if I'm to win Wimbledon.
"It was very good to win Queen's but I'm a long way from doing that at Wimbledon."
Nevertheless, Murray is in confident mood as he looks to beat his previous best at his home tournament of a quarter-final finish - achieved last year when he lost to eventual winner Nadal.
"I do feel confident that if I play my best I have a chance," he said. "I think I can win - that's the mentality I'll go into the tournament with.
Murray hopes to be the first British male winner at Wimbledon since 1936
"I've played a lot of matches coming into this tournament and I had a great clay season by my standards. This is definitely the best I've felt going into Wimbledon.
"Physically I feel stronger, and after Wimbledon last year I went away and worked really hard in the United States on the mental side as well.
"After that I won one of my first Masters series and reached the first Grand Slam final of my career at the US Open - that gave me the belief I could do it.
"I feel I'm playing well but you never know until you're out there what level you are going to have to play at.
"I'm not going to think about winning seven matches just yet - I'll worry about the first one and after that, one match every two days is all it takes."
The Scot insists the support of the Wimbledon crowd could go a long way to inspiring him to do something no Brit has done at SW19 since 1936 - win the title.
"The atmosphere at Wimbledon is a great thing," he said. "There are very few times throughout the year that you get the whole crowd - 14,000-15,000 people - behind you.
"I think it makes a big difference to your level of performance; it gets your adrenalin going right from the start of matches and I've always really enjoyed playing there.
"I've played some of my best tennis there and I hope to do that again this year."
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