| Hemel Hempstead to Oswestry | 133.31 mi (214.54 km) |
| Hemel Hempstead to Otley | 157.16 mi (252.92 km) |
| Hemel Hempstead to Ovenden | 149.62 mi (240.79 km) |
| Hemel Hempstead to Oxford | 33.73 mi (54.28 km) |
| Hemel Hempstead to Oxted | 39.62 mi (63.75 km) |
| Hemel Hempstead to Padbury | 25.54 mi (41.10 km) |
| Hemel Hempstead to Padiham | 160.86 mi (258.87 km) |
| Hemel Hempstead to Paignton | 162.16 mi (260.96 km) |
| Hemel Hempstead to Paisley | 325.48 mi (523.82 km) |
| Hemel Hempstead to Palmers Green | 18.02 mi (28.99 km) |
| Hemel Hempstead to Parkstone | 96.40 mi (155.14 km) |
| Hemel Hempstead to Partick | 324.71 mi (522.57 km) |
| Hemel Hempstead to Patcham | 62.93 mi (101.27 km) |
| Hemel Hempstead to Peebles | 291.42 mi (469.00 km) |
| Hemel Hempstead to Pelsall | 87.95 mi (141.53 km) |
