| Harpenden to Nitra | 850.42 mi (1,368.61 km) |
| Harpenden to Nova Dubnica | 836.55 mi (1,346.30 km) |
| Harpenden to Nove Mesto nad Vahom | 827.74 mi (1,332.12 km) |
| Harpenden to Nove Zamky | 862.50 mi (1,388.05 km) |
| Harpenden to Partizanske | 854.00 mi (1,374.38 km) |
| Harpenden to Petrzalka | 814.56 mi (1,310.91 km) |
| Harpenden to Pezinok | 816.31 mi (1,313.73 km) |
| Harpenden to Piest'any | 832.28 mi (1,339.42 km) |
| Harpenden to Poprad | 925.15 mi (1,488.88 km) |
| Harpenden to Povazska Bystrica | 844.86 mi (1,359.67 km) |
| Harpenden to Presov | 966.66 mi (1,555.68 km) |
| Harpenden to Prievidza | 860.84 mi (1,385.39 km) |
| Harpenden to Puchov | 839.99 mi (1,351.84 km) |
| Harpenden to Revuca | 926.40 mi (1,490.90 km) |
| Harpenden to Rimavska Sobota | 929.96 mi (1,496.63 km) |
