| Viernheim to Oberkirch | 73.20 mi (117.80 km) |
| Viernheim to Obernburg am Main | 32.52 mi (52.34 km) |
| Viernheim to Obernkirchen | 189.72 mi (305.32 km) |
| Viernheim to Oberschleissheim | 162.43 mi (261.40 km) |
| Viernheim to Oberstdorf | 166.62 mi (268.15 km) |
| Viernheim to Obertraubling | 166.63 mi (268.16 km) |
| Viernheim to Obertshausen | 38.01 mi (61.17 km) |
| Viernheim to Oberursel | 45.71 mi (73.57 km) |
| Viernheim to Ochsenfurt | 67.06 mi (107.93 km) |
| Viernheim to Ochsenhausen | 119.13 mi (191.72 km) |
| Viernheim to Ochtrup | 193.75 mi (311.80 km) |
| Viernheim to Odenthal | 121.59 mi (195.69 km) |
| Viernheim to Oelde | 159.44 mi (256.60 km) |
| Viernheim to Oelsnitz | 170.48 mi (274.36 km) |
| Viernheim to Oer-Erkenschwick | 156.37 mi (251.66 km) |
