On the bustling 21-race calendar for 2018, three events – France, Austria and Britain – will be held on subsequent weekends.
Carey, who has replaced Bernie Ecclestone as F1 CEO, said the back-to-back races are to avoid a clash with the World Cup final.
“It would have been difficult for promoters to have to compete with the final of a World Cup,” he said.
“It’s important to notice that all of the races of the three are in Europe. I think the calendar is well thought out,” added Carey.