Hertfordshire is situated just north of London in the south of England. It is only 30 minutes train journey from central London and approximately 1 hour drive from Cambridge and Oxford. Hertfordshire is also considered close to the main London airports, London Heathrow (LHR), London Luton (LTN) and London Stansted (STN) airports.
Hertfordshire is home to many cycle routes and cyclists organisations. Mainly based in St Albans, Hertfordshires only city, there are cycling clubs for road, mountain bike and family cyclists.
| Route Name | Start | End | Duration | Miles |
| Kings Langley Circular | TL072027 | Kings Langley | 1:20 | 13 |
| Ebury Way | TQ 111 952 | TQ 062 941 | 00:40 | 6.5 |
| Nicky Line | TL134 152 | TL059 073 | 00:45 | 8.75 |
| Bricket Wood to Harpenden | TL135021 | TL135021 | 2:30 | 25 |
| Aldenham Off Road Trail | A5183 Oakridge Lane | A5183 Radlett | 00:30 | 7 |
| Radlett Borehamwood | Underneath Radlett Road | Radlett | 00:45 | 7 |
| Shenley Ridge | Shenley Rectory Lane | Shenley Centre | 00:45 | 7 |
| Old Welwyn via Ayot St Lawrence and Ayot St Peter | Welwyn Village | School Lane | 01:00 | 9.5 |
| Lap of Hatfield | Hatfield Train Station | Hatfield Train Station | 00:45 | 6.42 |
| Hatfield - Hadley Wood section of Great North Way | Hatfield Train Station | Hatfield Train Station | 01:20 | 10.44 |
| Hertford to Waltham Abbey | Hertford | Waltham Cross | 01:00 | 10.87 |
| Long Martson Road Climb | Lower Icknield Way, Long Marston | Long Marston | 02:00 | 21.55 |
| Herts to Yorks | Furneux Pelham | Cragg Vale | 16:00 | 165.38 |
| St Albans To Islington | St Albans | Islington | 02:06 | 21.59 |
| Sawbo To Walthamstow | Sawbridgeworth | Walthamstow | 02:12 | 22.76 |
| St Margarets To Cambridge | St Margarets | Cambridge | 03:30 | 35.83 |
| Potters Bar Circular | High Street | High Street | 07:24 | 74.14 |
| Leavesden-Chipperfield Loop | Leavesden | Leavesden | 01:36 | 16.83 |
| Bushey Radlett Loop | Herkomer Road, off High Street | Herkomer Road, off High Street | 01:06 | 11.87 |
| St Abans Wheathamsptead Harpenden Loop | Verulam Road, St Albans | St Albans | 02:12 | 22.54 |
| Chiltern Century | Harpenden | Harpenden | 10:00 | 100.08 |
| Harpenden To Old Warden | Harpenden | Old Warden | 03:48 | 38.03 |
| Hitchin To Shefford Via Baldock | Hitchin | Shefford | 01:54 | 19.05 |
| Kings Langley Sarrat Rickmonsworth And Watford | Kings Langley | Kings Langley | 02:24 | 24.37 |
| Watford, Edbury Way & Grand Union Canal | Gladstone Road | Gladstone Road | 01:12 | 12.48 |
| Ware To Gt Portland Street | Ware, Herts | Great Portland Street Station | 02:54 | 29 |
| Hatfield, St Albans, Wheathampstead, Kimpton | Hatfield, Galleria (St Albans Way Cycle Path) | Hatfield Galleria | 03:12 | 32.83 |
| Enfield Herts Loop | Enfield Road A110 | Enfield Road A110 | 05:12 | 52.78 |
| Cassio Park To Sarrat Circular | Cassio Park | Cassio Park | 01:06 | 11.04 |
| Bushey Arches To Cowley Uxbridge Via Ebury Way | Bushey Arches (WD19) | Cowley, Uxbridge (UB8) | 01:12 | 12.24 |
| Kings Langley via Bovingdon Sarratt and Buckshill | Kings Langley High Street | Kings Langley High Street | 02:06 | 21.01 |
| St Albans To Fingest Oxon | St Albans | Fingest, Henley on Thames | 03:00 | 30.15 |
| Watford To Windsor | Cassiobury Park | Windsor Park | 02:18 | 23.52 |
