| Romanshorn to Opovo | 555.72 mi (894.34 km) |
| Romanshorn to Osecina | 538.72 mi (866.98 km) |
| Romanshorn to Padinska Skela | 558.55 mi (898.89 km) |
| Romanshorn to Pancevo | 570.01 mi (917.34 km) |
| Romanshorn to Paracin | 634.53 mi (1,021.18 km) |
| Romanshorn to Pecinci | 538.94 mi (867.34 km) |
| Romanshorn to Petrovac na Mlavi | 618.87 mi (995.97 km) |
| Romanshorn to Petrovaradin | 525.14 mi (845.13 km) |
| Romanshorn to Pirot | 709.68 mi (1,142.11 km) |
| Romanshorn to Plandiste | 582.77 mi (937.87 km) |
| Romanshorn to Pozarevac | 601.64 mi (968.25 km) |
| Romanshorn to Pozega | 575.13 mi (925.59 km) |
| Romanshorn to Presevo | 701.27 mi (1,128.58 km) |
| Romanshorn to Priboj | 562.85 mi (905.82 km) |
| Romanshorn to Prijepolje | 569.62 mi (916.72 km) |
