Australia's Bernard Tomic says winning an Olympic gold medal at would mean more to him than winning a Grand Slam title.

"You can't put into words what winning a gold medal would mean,” he told AAP. "I can only dream of it (the Olympics) is like a fifth Grand Slam and something I always wanted to do better at than Grand Slams."

The 19-year-old Tomic has lost in the first round of his last four tournaments, including at Wimbledon to David Goffin. The Olympics will be played on grass at Wimbledon. Tomic added that the best-of-three sets Olympic format until the men’s final will give lower-ranked players a better chance.

"I think the top players favor the best of five," he said. "It's more difficult to beat them over a longer period. To beat them in best of three is a better chance so the opportunity is there for a lot of players, including me."