| Romanshorn to Oststeinbek | 414.75 mi (667.47 km) |
| Romanshorn to Ottendorf-Okrilla | 320.58 mi (515.92 km) |
| Romanshorn to Ottersberg | 382.64 mi (615.80 km) |
| Romanshorn to Ottobrunn | 112.69 mi (181.35 km) |
| Romanshorn to Ottweiler | 159.94 mi (257.40 km) |
| Romanshorn to Overath | 251.66 mi (405.02 km) |
| Romanshorn to Oyten | 380.14 mi (611.78 km) |
| Romanshorn to Paderborn | 288.31 mi (464.00 km) |
| Romanshorn to Papenburg | 389.87 mi (627.43 km) |
| Romanshorn to Parchim | 418.75 mi (673.91 km) |
| Romanshorn to Pasewalk | 457.84 mi (736.82 km) |
| Romanshorn to Passau | 202.10 mi (325.25 km) |
| Romanshorn to Pattensen | 325.47 mi (523.79 km) |
| Romanshorn to Pegnitz | 181.46 mi (292.03 km) |
| Romanshorn to Peine | 330.96 mi (532.63 km) |
