Olympic champion Kyle Chalmers has the 200m freestyle in his sights.

The Rio 100m gold medallist will contest the 200m event at this week's national short course titles in Brisbane and has not ruled out permanently adding it to his program.

"I really like the 200m. It intrigues me. It's a race I will definitely look at doing in the future (long course)," the 18-year-old said on Wednesday.

"There's more thought process that goes into it - it is not an all-out sprint or all-out aerobic race.

"I did my first couple of international races on the World Cup (circuit) and really enjoyed it.

"I am excited about racing it again in the future."

Chalmers has arrived at Brisbane fresh from recent 200m wins on the World Cup short course circuit in Singapore and Tokyo.

But Chalmers believed he faced a steep learning curve at the three-day national short course titles starting on Thursday.

"I am not a short-course swimmer at all," said Chalmers, who became the first Australian to win 100m Olympic gold since 1968.

"I have not put too much expectations on myself to do well here.

"But I would love to make that world short course team in Canada at the end of the year."

Still, the men's 200m freestyle looms as the race of the Brisbane meet.

Chalmers will line up in a 200m field also featuring Rio 400m gold medallist Mack Horton, Cameron McEvoy and Thomas Fraser-Holmes, as well as South Korea's Olympic medallist Park Tae-Hwan.

The Brisbane meet will act as the selection trials for December's world short course titles in Windsor, Canada.

Short-course racing is not the only thing Chalmers is trying to get his head around.

The South Australian teenager admits just walking down the street can still be a challenge.

"Doing simple things like going out for coffee with mates, going out for lunch, walking down ... to get groceries have been a challenge for me, people stopping me for photos and signatures," he said.

"But I think I am starting to get used to it now."

AAP