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M25

London Orbital Motorway M25

The M25 London Orbital Motorway, is a 117-mile (188 km) orbital motorway that encircles London.

The motorway was first mooted early in the 20th century was constructed in the early 1970s and completed in 1986.

The M25 is one of the world's longest orbital roads and one of the busiest and most congested parts of the British motorway network. 196,000 vehicles were recorded in a single day near London Heathrow Airport.

Map of M25 Motorway


View Larger Map
M25 Motorway
miles km Clockwise exits Junction Anti-clockwise exits
    Dartford Crossing
A282
Dartford Tunnel
 
River
Thames
Dartford Crossing
A282
Queen Elizabeth Bridge
 
3.5 5.7 Erith A206 J1a Swanscombe A206
4.7 7.5 Dartford  A225 J1b No Exit
5.5 8.8 London (South East)
Canterbury
Bluewater Shopping Centre
Dartford (A225)

 
J2 London (South East)
Canterbury
Bluewater Shopping Centre
 
A2 (M2)
8.7 14.0 London (South East)
Maidstone
Swanley B2173
 
J3 Maidstone
Channel Tunnel
Folkestone,  Dover
London (South East)
Swanley


 
A20 / M20
12.2 19.6 Bromley  A21
Orpington  A224
J4 Bromley A21
Orpington A224
16.3 26.2 Sevenoaks
Royal Tunbridge Wells
Hastings A21
 
J5 Maidstone
Channel Tunnel
Folkestone
Dover  M26 (M20)
Sevenoaks
Royal Tunbridge Wells A21



 
21.0 33.8 Clacket Lane services   Clacket Lane services
25.8 41.6 East Grinstead,
Eastbourne
Caterham,
Godstone A22
Westerham (A25)


 
J6 East Grinstead
Eastbourne
Caterham, Godstone, A22
Redhill (A25)

 
28.6 46.0 London Gatwick Airport
Crawley,  Brighton
East Grinstead
Croydon

 
J7 London Gatwick Airport
Crawley, Brighton , Croydon
M23
31.9 51.4 Reigate, Sutton  A217
Redhill (A25)
J8 Reigate,  Sutton  A217
Kingston-upon-Thames
(A240)
 
38.5 62.0 Leatherhead A243
Worthing (A24)
J9 Leatherhead A243
Worthing (A24)
39.5 63.5 Cobham Services
(opening 2012)
  Cobham Services
45.0 72.4 London (South West)
Sutton ,  Guildford
Portsmouth
 
J10 London (South West)
Guildford ,  Portsmouth
A3
49.8 80.2 Chertsey A317
Woking  A320
J11 Woking A320
Chertsey A317
52.1 83.8 Basingstoke
Southampton
Richmond
 
J12 Basingstoke, Southampton
Richmond
M3
55.2 88.8 Staines A30 J13 London (West)
Staines,  Windsor  A30
57.0 91.8 London Heathrow Airport
(Terminals 4, 5 & Cargo)
A3113
 
J14 London Heathrow Airport
(Terminals 4, 5 & Cargo)
A3113
 
59.0 95.0 The WEST
Slough ,  Reading
London (West)
London Heathrow Airport
(Terminals 1, 2 & 3)


 
J15 The WEST
Slough , Reading
London (West)
London Heathrow Airport
(Terminals 1 2, & 3)


 
M4
63.8 102.6 The NORTH
Birmingham
Oxford ,  Uxbridge
London (West & Central)

 
J16 The NORTH
Birmingham
Oxford , Uxbridge
London (West ,Central)

 
M40
68.7 110.5 Maple Cross (A412) J17 Maple Cross
Rickmansworth (A412)
69.9 112.5 Rickmansworth
Chorleywood
Amersham A404
 
J18 Chorleywood
Amersham A404
    Watford  A41 J19 No Exit
73.8 118.7 Hemel Hempstead
Aylesbury A41
J20 Hemel Hempstead,
Aylesbury A41
A4251
 
76.3 122.8 The NORTH
Luton
London Luton Airport
 
J21 The NORTH
Luton
London Luton Airport
 
M1
76.9 123.7 Watford  A405
Harrow  (M1 South)
J21A St Albans A405
London (North West)
 (M1 South)
 
80.6 129.7 St Albans A1081 J22 St Albans A1081
83.3 134.0 Hatfield A1(M)
London (North West) A1
Barnet A1081
South Mimms services

 
J23 Hatfield A1(M)
London (North West) A1
Barnet A1081
South Mimms Services

 
85.9 138.2 Potters Bar A111 J24 Potters Bar A111
91.4 147.1 Enfield Town , Hertford  A10 J25 Enfield , Hertford A10
94.9 152.7 Waltham Abbey
Loughton A121
J26 Waltham Abbey
Loughton A121
99.2 159.7 London (North East)
London Stansted Airport
 Harlow,  Cambridge
 
J27 London (North East)
London Stansted Airport
Harlow, Cambridge
 
M11
107.1 172.4 Chelmsford
Witham
Colchester  A12
Brentwood A1023

 
J28 Chelmsford
Romford A12
Brentwood A1023
 
109.9 176.8 Romford
Basildon
Southend  A127
 
J29 Basildon
Southend
A127
 
115.2 185.4 Thurrock
(Lakeside Shopping Centre)
Tilbury A13
Thurrock services

 
J30 Dagenham
Thurrock
(Lakeside Shopping Centre)
Tilbury A13, (A1306,A126, A1090)
Thurrock Services


 
115.9 186.6 No exit J31 South Ockendon
Dagenham A1306
    Dartford Crossing A282
Dartford Tunnel
River
Thames
Dartford Crossing A282
Queen Elizabeth Bridge

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