| Kelso to Oberkirch | 5,262.19 mi (8,468.67 km) |
| Kelso to Obernburg am Main | 5,211.52 mi (8,387.13 km) |
| Kelso to Obernkirchen | 5,069.30 mi (8,158.25 km) |
| Kelso to Oberschleissheim | 5,362.43 mi (8,629.99 km) |
| Kelso to Oberstdorf | 5,381.74 mi (8,661.08 km) |
| Kelso to Obertraubling | 5,333.55 mi (8,583.51 km) |
| Kelso to Obertshausen | 5,190.97 mi (8,354.05 km) |
| Kelso to Oberursel | 5,176.91 mi (8,331.43 km) |
| Kelso to Ochsenfurt | 5,244.47 mi (8,440.15 km) |
| Kelso to Ochsenhausen | 5,334.63 mi (8,585.26 km) |
| Kelso to Ochtrup | 5,028.25 mi (8,092.19 km) |
| Kelso to Odenthal | 5,093.93 mi (8,197.89 km) |
| Kelso to Oelde | 5,072.19 mi (8,162.90 km) |
| Kelso to Oelsnitz | 5,246.92 mi (8,444.11 km) |
| Kelso to Oer-Erkenschwick | 5,062.08 mi (8,146.64 km) |
