Sign/Name | North/East end | South/West end | Length |
M1 motorway | Leeds, West Yorkshire, England | London, England | 193.5 miles (311.4 km) |
M2 motorway | Faversham, Kent, England | Strood, Medway, England | 25.7 miles (41.4 km) |
M3 motorway | Sunbury-on-Thames, Surrey, England | Southampton, Hampshire, England | 58.6 miles (94.3 km) |
M4 motorway | Chiswick, London, England | Pont Abraham services, Carmarthenshire, Wales | 189.5 miles (305.0 km) |
M5 motorway | West Bromwich, West Midlands, England | Exeter, Devon, England | 162.9 miles (262.2 km) |
M6 motorway | Gretna, Dumfries and Galloway, Scotland | Catthorpe, Leicestershire, England | 232.2 miles (373.7 km) |
M6 Toll motorway | Cheslyn Hay, Staffordshire, England | Coleshill, Warwickshire, England | 27 miles (43 km) |
M8 motorway | Edinburgh, Scotland | Langbank, Renfrewshire, Scotland | 60.3 miles (97.0 km) |
M9 motorway | Dunblane, Stirling, Scotland | Newbridge, Edinburgh, Scotland | 33 miles (53 km) |
M11 motorway | Girton, Cambridgeshire, England | Woodford, London, England | 49.7 miles (80.0 km) |
M18 motorway | Rawcliffe, East Riding of Yorkshire, England | Thurcroft, South Yorkshire, England | 26.5 miles (42.6 km) |
M20 motorway | Folkestone, Kent, England | Swanley, Kent, England | 50.6 miles (81.4 km) |
M23 motorway | Marling Glen, Surrey, England | Pease Pottage, West Sussex, England | 15.9 miles (25.6 km) |
M25 motorway | Orbital around London, England | 117 miles (188 km) |
M26 motorway | Wrotham Heath, Kent, England | Chevening, Kent, England | 9.9 miles (15.9 km) |
M27 motorway | Portsmouth, Hampshire, England | Cadnam, Hampshire, England | 25 miles (40 km) |
M32 motorway | Hambrook, South Gloucestershire, England | Bristol, England | 4 miles (6.4 km) |
M40 motorway | Earlswood, Warwickshire, England | Denham, Buckinghamshire, England | 89 miles (143 km) |
M42 motorway | Appleby Magna, North West Leicestershire, England | Bromsgrove, Worcestershire, England | 55 miles (89 km) |
M45 motorway | Watford Gap, Northamptonshire, England | Thurlaston, Warwickshire, England | 7.9 miles (12.7 km) |
M48 motorway | Olveston, South Gloucestershire, England | Magor, Monmouthshire, Wales | 12 miles (19 km) |
M49 motorway | Severn Beach, South Gloucestershire | Avonmouth, Bristol, England | 5 miles (8.0 km) |
M50 motorway | Strensham, Worcestershire, England | Ross-on-Wye, Herefordshire, England | 21 miles (34 km) |
M53 motorway | Wallasey, Merseyside, England | Chester, Cheshire, England | 18.9 miles (30.4 km) |
M54 motorway | Essington, South Staffordshire, England | Wellington, Shropshire, England | 23 miles (37 km) |
M55 motorway | Fulwood, Lancashire, England | Blackpool, Lancashire, England | 11.4 miles (18.3 km) |
M56 motorway | Cheadle, Greater Manchester, England | Mollington, Cheshire West and Chester, England | 33.3 miles (53.6 km) |
M57 motorway | Netherton, Merseyside, England | Huyton, Merseyside, England | 14 miles (23 km) |
M58 motorway | Orrell, Greater Manchester, England | Netherton, Merseyside, England | 12 miles (19 km) |
M60 motorway | Orbital around Greater Manchester, England | 35 miles (56 km) |
M61 motorway | Worsley, Greater Manchester, England | Preston, Lancashire, England | 20 miles (32 km) |
M62 motorway | North Cave, East Riding of Yorkshire, England | Knotty Ash, Liverpool, Merseyside, England | 107 miles (172 km) |
M65 motorway | Colne, Lancashire, England | Farington, Lancashire, England | 30 miles (48 km) |
M66 motorway | Edenfield, Lancashire, England | Whitefield, Greater Manchester, England | 8 miles (13 km) |
M67 motorway | Hattersley, Greater Manchester, England | Denton, Greater Manchester, England | 5 miles (8.0 km) |
M69 motorway | Leicester, East Midlands, England | Coventry, West Midlands, England | 15.7 miles (25.3 km) |
M73 motorway | Mollinsburn, North Lanarkshire, Scotland | Uddingston, South Lanarkshire, Scotland[11] | 7 miles (11 km) |
M74 motorway | Tollcross, Glasgow, Scotland | Abington, South Lanarkshire, Scotland[12] | 35 miles (56 km) |
M77 motorway | Kinning Park, Glasgow, Scotland | Fenwick, East Ayrshire, Scotland | 20 miles (32 km) |
M80 motorway | Stirling, Stirling, Scotland | Haggs, Falkirk, Scotland | 6 miles (9.7 km) |
Stepps, North Lanarkshire, Scotland | Blochairn, Glasgow, Scotland | 5 miles (8.0 km) |
M90 motorway | Perth, Perth and Kinross, Scotland | Inverkeithing, Fife, Scotland | 30 miles (48 km) |
M180 motorway | Elsham, North Lincolnshire, England | Stainforth, South Yorkshire | 25 miles (40 km) |
M181 motorway | Scunthorpe, North Lincolnshire, England | East Butterwick, North Lincolnshire, England | 2 miles (3.2 km) |
M271 motorway | Upton, Southampton, Hampshire, England | Totton and Eling, Hampshire, England | 3 miles (4.8 km) |
M275 motorway | Wymering, Portsmouth, Hampshire, England | Portsmouth, Hampshire, England | 2 miles (3.2 km) |
M602 motorway | Eccles, Greater Manchester, England | Salford, Greater Manchester, England | 4 miles (6.4 km) |
M606 motorway | Bradford, West Yorkshire, England | Cleckheaton, West Yorkshire, England | 3 miles (4.8 km) |
M621 motorway | Rothwell, West Yorkshire, England | Gildersome, West Yorkshire, England | 7.7 miles (12.4 km) |
M876 motorway | Dennyloanhead, Falkirk, Scotland | Bowtrees, Falkirk, Scotland | 8 miles (13 km) |
M898 motorway | Erskine, Renfrewshire, Scotland | 0.5 miles (0.80 km) |
A1(M) motorway | Stotfold, Bedfordshire, England | South Mimms, Hertfordshire, England | 23 miles (37 km) |
Peterborough, England | Alconbury, Cambridgeshire, England | 14 miles (23 km) |
Blyth, Nottinghamshire, England | Carcroft, South Yorkshire, England | 15 miles (24 km) |
Dishforth, North Yorkshire, England | Darrington, West Yorkshire, England | 34 miles (55 km) |
Leeming Bar, North Yorkshire, England | Dishforth, North Yorkshire, England | 24 miles (39 km) |
Barton, North Yorkshire, England | Gateshead, Tyne and Wear, England | 30 miles (48 km) |
A3(M) motorway | Horndean, Hampshire, England | Bedhampton, Hampshire, England | 5 miles (8.0 km) |
A38(M) motorway | Gravelly Hill, Birmingham, West Midlands, England | Birmingham, West Midlands, England | 2 miles (3.2 km) |
A48(M) motorway | Castleton, Newport, Wales | St Mellons, Cardiff, Wales | 2 miles (3.2 km) |
A57(M) motorway | Ardwick, Manchester, Greater Manchester, England | Hulme, Manchester, Greater Manchester, England | 2 miles (3.2 km) |
A58(M) motorway | Brunswick, Leeds, North Yorkshire, England[13] | Armley, Leeds, North Yorkshire, England | 2 miles (3.2 km) |
A64(M) motorway | Quarry Hill, Leeds, North Yorkshire, England | Brunswick, Leeds, North Yorkshire, England[14] | 0.5 miles (0.80 km) |
A66(M) motorway | Stapleton, North Yorkshire, England | Cleasby, North Yorkshire, England | 2 miles (3.2 km) |
A74(M) motorway | Abington, South Lanarkshire, Scotland[15] | Gretna, Dumfries and Galloway, Scotland | 45 miles (72 km) |
A167(M) motorway | Tyne Bridge, Newcastle upon Tyne, Tyne and Wear, England | Gateshead, Tyne and Wear, England | 1.1 miles (1.8 km) |
A194(M) motorway | South Shields, Tyne and Wear, England | Washington, Tyne and Wear, England | 4 miles (6.4 km) |
A308(M) motorway | Bray Wick, Berkshire, England | M4 motorway Junction 8/9 | 0.6 miles (0.97 km) |
A329(M) motorway | Winnersh, Berkshire, England | Bracknell, Berkshire, England | 4 miles (6.4 km) |
A404(M) motorway | Woolley Green, Berkshire, England | M4 motorway Junction 8/9 | 2 miles (3.2 km) |
A601(M) motorway | Carnforth, Lancashire, England | 1.1 miles (1.8 km) |
A627(M) motorway | Rochdale, Greater Manchester, England | Chadderton, Greater Manchester, England | 6 miles (9.7 km) |
A823(M) motorway | Inverkeithing, Fife, Scotland | Rosyth, Fife, Scotland | 1 mile (1.6 km) |