A full list of motorways.
Single-digit motorways[]
England[]
- M1 - Outer London > Leeds
- M2
- M3
- M4 - Part From J1 to J22 Second Severn Crossing
- M5 - M6 J8 to Exeter
- M6 - M1 J19 to Carlisle / Scotland
- M6 Toll - Birmingham Relief Road
Scotland[]
Wales[]
- M4 - part from J22-J49
Northern Ireland[]
- M1
- M2
- M3
- M3
Two-digit motorways[]
England[]
- M10 - M1 J7 to St Albans
- M11 - Outer London to Cambridge
- M18 - M1 J32 to M62 J35
- M20 - M25 J3 Swanley to Folkestone
- M23 - Merstham to Crawley
- M25 - Orbital of Greater London
- M26 - M25 J5 to M20 J2a
- M27 - Portsmouth to Cadnam
- M32 - Bristol Urban
- M40 - Denham to M42 J3A
- M42 - Tamworth to M5 J4A
- M45 - M1 J17 to Rugby , Cawston
- M48 - Severn Crossing
- M49 - Avon Mouth to Second Severn Crossing
- M50 - M5 J8 to Ross on Wye
- M53 - N. London to Wallasey
- M54 - M6 J10a to Wellington, Shropshire
- M55 - M6 J32 Preston to Blackpool
- M56 - Manchester to Wales
- M57 - Liverpool Bypass
- M58 - Aintree,Liverpool to M6 J26 Wigan
- M60 - Greater Manchester outer Ring
- M61 - M6 J30 Preston to M60 J15 Swindon
- M62 - Hull to Liverpool
- M65 - Preston to Colne
- M66 - M62/M60 J18 Simister to Edenfield
- M67 - M60 J24 Denton,Manchester to (Hyde)
- M69 - M1 J21 Leicester to M6 J2 Coventry
Scotland[]
- M73
- M74
- M77
- M80
- M90 - Broxden Roundabout/Friarton Bridge to Forth Road Bridge
Wales[]
- M48 - Severn Crossing
Northern Ireland[]
- M12
- M22
Three-digit motorways[]
England[]
- M180 M18 to Immingham (Docks)
- M181 M180 to Scunthorpe link
- M271
- M275- Portsmouth
- M602 Salford to M60 / M62 link
- M606 M62 to Bradford link
- M621 M1 - Leeds - M62
Scotland[]
- M876
- M898
Converted A roads[]
England[]
- A1(M) - Various sections upgraded
- A14(M)
- A3(M)
- A38(M)
- A48(M)
- A57(M)
- A58(M)
- A64(M)
- A66(M)
- A74(M)
- A167(M)
- A194(M)
- A308(M)
- A329(M)
- A404(M)
- A601(M)
- A627(M)
- A823(M)
Scotland[]
A74(M)
A8(M)
Wales[]
A48(M)
Northern Ireland[]
- A8(M) (NI)