| Rorschach to Opole | 440.78 mi (709.37 km) |
| Rorschach to Orzesze | 459.52 mi (739.52 km) |
| Rorschach to Osowa | 618.51 mi (995.40 km) |
| Rorschach to Ostroda | 628.37 mi (1,011.27 km) |
| Rorschach to Ostroleka | 657.19 mi (1,057.64 km) |
| Rorschach to Ostrow Mazowiecka | 659.96 mi (1,062.10 km) |
| Rorschach to Ostrow Wielkopolski | 471.16 mi (758.26 km) |
| Rorschach to Ostrowiec Swietokrzyski | 587.34 mi (945.23 km) |
| Rorschach to Ostrzeszow | 466.47 mi (750.70 km) |
| Rorschach to Oswiecim | 476.71 mi (767.19 km) |
| Rorschach to Otwock | 614.28 mi (988.58 km) |
| Rorschach to Ozarow Mazowiecki | 600.00 mi (965.60 km) |
| Rorschach to Ozimek | 451.95 mi (727.35 km) |
| Rorschach to Ozorkow | 535.64 mi (862.03 km) |
| Rorschach to Pabianice | 528.23 mi (850.10 km) |
