An anti-coal activist, who's five-hour protest on a Queensland coal train cost the freight company Aurizon $1.3 million, has fronted court.

Jaxom Kerlin, 18, was granted bail in the Brisbane Magistrate's Court on Saturday after he stopped the moving coal train and climbed onto a carriage in Brisbane earlier in the week.

The coal protester, Jaxom Kerlin, was charged on Thursday evening. Credit:Extinction Rebellion.

The court heard his actions held up five coal trains travelling to the Port of Brisbane for 14 hours at a cost of $90,000 per hour.

Another three trains were cancelled, with the total cost to the freight company, Aurizon, likely to be about $1.3 million, police prosecutor Senior Sergeant Bill Heasley said.