| Hemel Hempstead to Pemberton | 154.02 mi (247.86 km) |
| Hemel Hempstead to Pembroke Dock | 191.62 mi (308.38 km) |
| Hemel Hempstead to Pen-y-Bont ar Ogwr | 134.41 mi (216.32 km) |
| Hemel Hempstead to Penarth | 118.05 mi (189.98 km) |
| Hemel Hempstead to Pencoed | 131.12 mi (211.02 km) |
| Hemel Hempstead to Pendlebury | 143.85 mi (231.51 km) |
| Hemel Hempstead to Penicuik | 302.95 mi (487.56 km) |
| Hemel Hempstead to Penistone | 131.76 mi (212.04 km) |
| Hemel Hempstead to Penkridge | 96.81 mi (155.80 km) |
| Hemel Hempstead to Penrith | 222.30 mi (357.76 km) |
| Hemel Hempstead to Penwortham | 166.47 mi (267.91 km) |
| Hemel Hempstead to Penzance | 247.78 mi (398.76 km) |
| Hemel Hempstead to Perivale | 16.14 mi (25.98 km) |
| Hemel Hempstead to Perry Barr | 80.93 mi (130.25 km) |
| Hemel Hempstead to Perth | 342.50 mi (551.20 km) |
