How long does it take to go through the channel tunnel?

The Channel Tunnel, also known as the Chunnel, is a 50.5-kilometre (31.4-mile) undersea rail tunnel that connects Folkestone, Kent, in the United Kingdom, with Coquelles, Pas-de-Calais, near Calais, in northern France, beneath the English Channel at the Strait of Dover.

The Eurotunnel Shuttle, which carries road vehicles on railway wagons, takes about 35 minutes to travel the 37.9 km (23.5 mi) through the undersea section of the tunnel. The passenger Eurostar train service can travel the length of the tunnel in just 20 minutes.