How long is the river Thames?

Conversely, high spring tides can overtop the weir and affect the river flow as far as 2 miles (3.2 km) upstream of Teddington. read more

The River Thames (/ t ɛ m z / ( listen) TEMZ) is a river that flows through southern England, most notably through London. At 215 miles (346 km), it is the longest river entirely in England and the second longest in the United Kingdom, after the River Severn. read more

The length of River Thames from its source (Gloucestershire Cotswolds) to North Sea is 215 miles (346 km) The non-tidal part of Thames is 147 miles while the tidal part of Thames is 55 miles. read more

The Thames is some 205 miles (330 km) long, running 140 miles (226 km) from the source to the tidal waters limit—i.e., from Thames Head to Teddington Lock—and, as an estuary, a further 65 miles (104 km) from there to The Nore sandbank, which marks the transition from estuary to open sea. read more