| Wattwil to Oberkirch | 97.24 mi (156.49 km) |
| Wattwil to Obernburg am Main | 175.81 mi (282.95 km) |
| Wattwil to Obernkirchen | 343.45 mi (552.72 km) |
| Wattwil to Oberschleissheim | 132.84 mi (213.79 km) |
| Wattwil to Oberstdorf | 56.54 mi (91.00 km) |
| Wattwil to Obertraubling | 183.11 mi (294.69 km) |
| Wattwil to Obertshausen | 191.80 mi (308.67 km) |
| Wattwil to Oberursel | 202.21 mi (325.43 km) |
| Wattwil to Ochsenfurt | 168.79 mi (271.64 km) |
| Wattwil to Ochsenhausen | 67.06 mi (107.93 km) |
| Wattwil to Ochtrup | 349.57 mi (562.58 km) |
| Wattwil to Odenthal | 273.07 mi (439.46 km) |
| Wattwil to Oelde | 316.29 mi (509.01 km) |
| Wattwil to Oelsnitz | 257.15 mi (413.84 km) |
| Wattwil to Oer-Erkenschwick | 311.35 mi (501.07 km) |
