CHFI-FM is a Canadian radio station, which broadcasts an adult contemporary format at 98.1 on the FM dial in Toronto, Ontario. Like most Toronto radio and TV channels, it broadcasts atop the CN Tower with an ERP of 44 kW, and has a sizeable amount of American listeners. It is the most-listened to radio station in Canada and the most listened to station in Toronto according to the Bureau of Broadcast Measurement (BBM) ratings (occasionally sharing the top spot with Bell Media Radio-owned Hot AC station CHUM-FM).