| Naugatuck to Oberkirch | 3,803.59 mi (6,121.28 km) |
| Naugatuck to Obernburg am Main | 3,808.15 mi (6,128.62 km) |
| Naugatuck to Obernkirchen | 3,737.88 mi (6,015.53 km) |
| Naugatuck to Oberschleissheim | 3,955.35 mi (6,365.52 km) |
| Naugatuck to Oberstdorf | 3,929.08 mi (6,323.24 km) |
| Naugatuck to Obertraubling | 3,956.84 mi (6,367.92 km) |
| Naugatuck to Obertshausen | 3,789.11 mi (6,097.98 km) |
| Naugatuck to Oberursel | 3,774.84 mi (6,075.02 km) |
| Naugatuck to Ochsenfurt | 3,851.08 mi (6,197.72 km) |
| Naugatuck to Ochsenhausen | 3,894.57 mi (6,267.70 km) |
| Naugatuck to Ochtrup | 3,664.48 mi (5,897.42 km) |
| Naugatuck to Odenthal | 3,693.06 mi (5,943.40 km) |
| Naugatuck to Oelde | 3,712.08 mi (5,974.02 km) |
| Naugatuck to Oelsnitz | 3,911.27 mi (6,294.58 km) |
| Naugatuck to Oer-Erkenschwick | 3,681.89 mi (5,925.43 km) |
