| Tukums to Oberkirch | 854.80 mi (1,375.67 km) |
| Tukums to Obernburg am Main | 756.05 mi (1,216.74 km) |
| Tukums to Obernkirchen | 646.81 mi (1,040.95 km) |
| Tukums to Oberschleissheim | 771.77 mi (1,242.04 km) |
| Tukums to Oberstdorf | 853.44 mi (1,373.48 km) |
| Tukums to Obertraubling | 715.51 mi (1,151.50 km) |
| Tukums to Obertshausen | 754.55 mi (1,214.33 km) |
| Tukums to Oberursel | 756.11 mi (1,216.84 km) |
| Tukums to Ochsenfurt | 737.53 mi (1,186.94 km) |
| Tukums to Ochsenhausen | 825.29 mi (1,328.18 km) |
| Tukums to Ochtrup | 716.34 mi (1,152.84 km) |
| Tukums to Odenthal | 766.63 mi (1,233.76 km) |
| Tukums to Oelde | 697.67 mi (1,122.79 km) |
| Tukums to Oelsnitz | 636.31 mi (1,024.03 km) |
| Tukums to Oer-Erkenschwick | 736.50 mi (1,185.28 km) |
