This list of motorways in the United Kingdom is a complete list of motorways in the United Kingdom. Note that the numbering scheme used for Great Britain does not include roads in Northern Ireland, which are allocated numbers on an ad hoc basis.[1]
| Link | Route | Ceremonial counties (England) Council areas (Scotland) Principal areas (Wales) |
Highest junction to junction average daily vehicle flow 2019[2] | Length | |
|---|---|---|---|---|---|
| mi | km | ||||
| M1 | A south-north motorway linking LondontoLeeds. The first long-distance motorway in the country to be built.[3] | Greater London, Hertfordshire, Bedfordshire, Buckinghamshire, Northamptonshire, Leicestershire, Nottinghamshire, Derbyshire, South Yorkshire, West Yorkshire | 168,763 | 193.5 | 311.4 |
| M2 | A west-east motorway bypassing Medway, Sittingbourne and Faversham. | Kent | 106,582 | 25.7 | 41.4 |
| M3 | A northeast-southwest motorway linking LondontoSouthampton. | Surrey, Hampshire | 136,059 | 58.6 | 94.3 |
| M4 | An east-west motorway linking LondontoCardiff and South Wales. | Greater London, Buckinghamshire, Berkshire, Wiltshire, Gloucestershire, Monmouthshire, Newport, Cardiff, Vale of Glamorgan, Rhondda Cynon Taff, Bridgend, Neath Port Talbot, Swansea, Carmarthenshire | 161,807 | 189 | 304 |
| M5 | A northeast-southwest motorway in South West England, linking BirminghamtoExeter. | West Midlands, Worcestershire, Gloucestershire, Bristol, Somerset, Devon | 127,584 | 162.9 | 262.2 |
| M6 | A southeast-northwest motorway linking the West MidlandstoNorth West England and Scotland. Continues as A74(M). The first and longest motorway in the country to be built.[3] | Leicestershire, Warwickshire, West Midlands, Staffordshire, Cheshire, Merseyside, Greater Manchester, Lancashire, Cumbria | 173,201 | 232.2 | 373.7 |
| M6 Toll | Atolled bypass of the M6 in the West Midlands. | West Midlands, Staffordshire, Warwickshire | 110,489 | 27 | 43 |
| M8 | An east-west motorway linking EdinburghtoGlasgow. | Edinburgh, West Lothian, North Lanarkshire, Glasgow, Renfrewshire | 160,484 | 60.3 | 97.0 |
| M9 | A southeast-northwest motorway linking EdinburghtoStirling. | Edinburgh, West Lothian, Falkirk, Stirling | 68,143 | 33.0 | 53.1 |
| M11 | A south-north motorway linking LondontoCambridge. | Greater London, Essex, Cambridgeshire | 121,964 | 55.0 | 88.5 |
| M18 | A southwest-northeast motorway linking the M1 to the M62. | South Yorkshire, East Riding of Yorkshire | 108,855 | 26.5 | 42.6 |
| M20 | A west-east motorway linking LondontoFolkestone and the Channel Tunnel. | Kent | 120,348 | 50.6 | 81.4 |
| M23 | A north-south motorway linking LondontoGatwick Airport and Crawley. | Surrey, West Sussex | 110,574 | 15.9 | 25.6 |
| M25 | Aring road of London numbered clockwise from Dartford. | Kent, Surrey, Berkshire, Greater London, Buckinghamshire, Hertfordshire, Essex | 216,108 | 117 | 188 |
| M26 | An east-west motorway linking the M25 to the M20. | Kent | 70,674 | 9.9 | 15.9 |
| M27 | A west-east motorway linking SouthamptontoPortsmouth. | Hampshire | 134,210 | 25.0 | 40.2 |
| M32 | A spur from the M4 into central Bristol. | Gloucestershire, Bristol | 84,898 | 4.4 | 7.1 |
| M40 | A southeast-northwest motorway linking LondontoBirmingham. | Buckinghamshire, Oxfordshire, Northamptonshire, Warwickshire | 133,490 | 89.0 | 143.2 |
| M42 | A motorway bypassing Birmingham to the south and east, continuing to the M1atKegworth as the A42. | Worcestershire, Warwickshire, West Midlands, Leicestershire | 154,532 | 40.0 | 64.4 |
| M45 | A spur from the M1 south of Rugby. | Warwickshire, Northamptonshire | 19,536 | 7.9 | 12.7 |
| M48 | An alternative route to the M4 between Bristol and Caldicot. | Gloucestershire, Monmouthshire | 22,632 | 12 | 19 |
| M49 | A western bypass of Bristol. | Bristol, Gloucestershire | 22,461 | 5.0 | 8.0 |
| M50 | A west-east motorway between the M5 and Ross-on-Wye. | Worcestershire, Gloucestershire, Herefordshire | 32,032 | 21.6 | 34.8 |
| M53 | A north-south motorway linking Birkenhead (and Liverpool via Kingsway Tunnel) to Chester. | Merseyside, Cheshire | 79,872 | 18.9 | 30.4 |
| M54 | An east-west motorway linking WolverhamptontoTelford. | Staffordshire, Shropshire | 70,652 | 23.0 | 37.0 |
| M55 | An east-west motorway linking PrestontoBlackpool. | Lancashire | 84,905 | 12.2 | 19.6 |
| M56 | A west-east motorway linking ManchestertoLiverpool and Chester. | Greater Manchester, Cheshire | 174,693 | 33.3 | 53.6 |
| M57 | An eastern bypass of Liverpool linking the M62toMaghull. | Merseyside | 99,521 | 10 | 16 |
| M58 | A west-east motorway linking LiverpooltoWigan. | Merseyside, Lancashire, Greater Manchester | 49,376 | 12 | 19 |
| M60 | A ring road of Manchester numbered clockwise from Stockport. | Greater Manchester | 180,501 | 36 | 58 |
| M61 | A north-south motorway linking PrestontoManchester. | Greater Manchester, Lancashire | 150,331 | 20.0 | 32.2 |
| M62 | A west-east motorway linking LiverpooltoHull. | Merseyside, Cheshire, Greater Manchester, West Yorkshire, North Yorkshire, East Riding of Yorkshire | 161,700 | 107 | 172 |
| M65 | A west-east motorway linking PrestontoBurnley and Colne. | Lancashire | 82,970 | 25.8 | 41.5 |
| M66 | A north-south motorway linking RamsbottomtoManchester. | Lancashire, Greater Manchester | 111,851 | 8.0 | 12.9 |
| M67 | A west-east motorway linking ManchestertoHadfield. | Greater Manchester | 58,435 | 5.0 | 8.0 |
| M69 | A northeast-southwest motorway linking LeicestertoCoventry. | Warwickshire, Leicestershire | 64,828 | 15.7 | 25.3 |
| M73 | An eastern bypass of Glasgow. | North Lanarkshire, Glasgow, South Lanarkshire | 95,331 | 7.0 | 11.3 |
| M74 | A northwest-southeast motorway linking GlasgowtoNorth West England. Continues as the A74(M) south of Abington. | Glasgow, North Lanarkshire, South Lanarkshire | 107,475 | 40 | 60 |
| M77 | A north-south motorway linking GlasgowtoKilmarnock. | Glasgow, East Renfrewshire, East Ayrshire | 94,151 | 20.0 | 32.2 |
| M80 | A southwest-northeast motorway linking GlasgowtoStirling. | Glasgow, North Lanarkshire, Falkirk, Stirling | 104,305 | 25.0 | 40.2 |
| M90 | A south-north motorway linking EdinburghtoPerth. | Edinburgh, Fife, Perth and Kinross | 76,503 | 36.0 | 57.9 |
| M180 | A west-east motorway linking ThornetoGrimsby. Continues as the A180 after the exit for the Humber Bridge. | South Yorkshire, Lincolnshire | 48,780 | 25.0 | 40.2 |
| M181 | A spur of the M180 leading to Scunthorpe. | Lincolnshire | 18,213 | 2.0 | 3.2 |
| M271 | A spur of the M27 bypassing Southampton to the west. | Hampshire | 53,678 | 2.3 | 3.7 |
| M275 | A spur from the M27 to central Portsmouth and Cosham. | 86,291 | 2.0 | 3.2 | |
| M602 | A west-east motorway linking the M62toSalford. | Greater Manchester | 73,292 | 4.0 | 6.4 |
| M606 | A spur from the M62toBradford. | West Yorkshire | 77,277 | 3.0 | 4.8 |
| M621 | An east-west motorway linking Leeds to the M1 and M62. | 103,207 | 7.7 | 12.4 | |
| M876 | A southwest-northeast motorway linking BonnybridgetoKincardine. | Falkirk | 42,611 | 8.0 | 12.9 |
| M898 | A spur from the M8 leading to Erskine Bridge. | Renfrewshire | 51,831 | 0.5 | 0.8 |
| Link | Route | Ceremonial counties (England) Council areas (Scotland) Principal areas (Wales) |
Highest junction to junction average daily vehicle flow 2019[2] |
|---|---|---|---|
| A1(M) | A south-north motorway split into four sections:
|
Hertfordshire, Bedfordshire, Cambridgeshire, Nottinghamshire, South Yorkshire, West Yorkshire, North Yorkshire, County Durham, Tyne and Wear | 143,012 |
| A3(M) | A north-south motorway linking the A3 to the A27 near Portsmouth. | Hampshire | 92,989 |
| A8(M) | A spur from the M8 and M73toBallieston. | Glasgow | 10,586 |
| A38(M) | A spur from the M6 to central Birmingham. | West Midlands | 146,908 |
| A48(M) | A spur from the M4 to central Cardiff. | Newport, Cardiff | 47,203 |
| A57(M) | Forms part of a ring road of Manchester. Also known as the Mancunian Way. | Greater Manchester | 90,785 |
| A58(M) | Forms the western part of the Leeds inner ring road. | West Yorkshire | 81,647 |
| A64(M) | Forms the eastern part of the Leeds inner ring road. | 43,617 | |
| A66(M) | A spur from the A1(M) to the A66 south of Darlington. | North Yorkshire | 15,337 |
| A74(M) | A northwest-southeast motorway linking the M74toNorth West England. Continues as the M6. | South Lanarkshire, Dumfries and Galloway, Cumbria | 41,662 |
| A167(M) | An urban motorway in Newcastle-Upon-Tyne. | Tyne and Wear | 63,911 |
| A194(M) | A south-north motorway linking the A1(M) to the Tyne Tunnel. | 42,802 | |
| A308(M) | A spur from the M4 south of Maidenhead. | Berkshire | 23,541 |
| A329(M) | A southeast-northwest motorway linking BracknelltoReading. | 69,520 | |
| A404(M) | A spur from the M4toHigh Wycombe. Continues as the A404 west of Maidenhead. | 59,816 | |
| A627(M) | A south-north motorway linking RochdaletoOldham. | Greater Manchester | 55,749 |
| A823(M) | A spur from the M90toDunfermline. | Fife | 20,363 |
| A1077(M) | A spur from the M181toScunthorpe. | Lincolnshire | 18,213 |
| Link | Description |
|---|---|
| M10 | A spur that ran from the M1toSt Albans, now part of the A414. |
| M41 | The former number for the West Cross Route, now part of the A3220 road.[4] |
| A40(M) | The former number for the Westway, now part of the A40.[4] |
| A102(M) | The former number for the East Cross Route, split into two sections:
|
| A601(M) | A spur that ran from the M6toCarnforth and Over Kellet. Now part of the A6070 and B6601.[5][6] |
| A6144(M) | A spur that ran from the M60toCarrington. It was unique for being single carriageway throughout. |
| Link | Route | Council areas |
|---|---|---|
| M1 | An east-west motorway linking BelfasttoDungannon. Continues as the A4. | Belfast, Lisburn and Castlereagh, Armagh City, Banbridge and Craigavon, Mid Ulster |
| M2 | A southeast-northwest motorway split into two sections:
Continues as the A26. |
Belfast, Antrim and Newtownabbey, Mid and East Antrim |
| M3 | A spur from the M2 to the A2 in east Belfast. | Belfast |
| M5 | A spur from the M2toNewtownabbey in north Belfast. | Belfast, Antrim and Newtownabbey |
| M12 | A spur from the M1toPortadown. | Armagh City, Banbridge and Craigavon |
| M22 | A spur from the M2toRandalstown. Continues as the A6. | Antrim and Newtownabbey |
| Link | Route | Council areas |
|---|---|---|
| A8(M) | A spur from the M2 to the A8 northwest of Newtownabbey. | Antrim and Newtownabbey |
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