Accredited official statistics

Road lengths in Great Britain: 2021

Road length statistics for publicly maintained roads in Great Britain for the year 2021.

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Statistics on publicly maintained roads in Great Britain for the year 2021.

In 2021, the total length of roads in Great Britain was estimated to be 247,800 miles.

There were 31,900 miles of major road in Great Britain in 2021, consisting of:

  • 2,300 miles of motorway (99% trunk, 1% principal)
  • 29,500 miles of ‘A’ road (18% trunk, 82% principal)

There were 216,000 miles of minor road in Great Britain in 2021, consisting of:

  • 18,900 miles of ‘B’ road
  • 197,100 miles of ‘C’ and ‘U’ roads

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Road length statistics

Email road.length@dft.gov.uk

Media enquiries 0300 7777 878

Updates to this page

Published 10 March 2022

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