how fast does a ferry go

A ferry typically travels at speeds ranging from about 10 to 40 knots. Conventional ferries usually operate between 10 and 20 knots to balance fuel efficiency, safety, and passenger comfort, while high-speed ferries can reach speeds from 25 up to 40 knots or more. The world's fastest ferry, the HSC Francisco, operates at a top speed of 58.1 knots (67 mph or 107 km/h).