| Ottumwa to Mouscron | 4,320.63 mi (6,953.39 km) |
| Ottumwa to Namur | 4,391.46 mi (7,067.37 km) |
| Ottumwa to Neder-Over-Heembeek | 4,357.39 mi (7,012.54 km) |
| Ottumwa to Neerpelt | 4,383.03 mi (7,053.80 km) |
| Ottumwa to Nevele | 4,321.87 mi (6,955.38 km) |
| Ottumwa to Niel | 4,347.46 mi (6,996.56 km) |
| Ottumwa to Nieuwpoort | 4,289.36 mi (6,903.06 km) |
| Ottumwa to Nijlen | 4,357.13 mi (7,012.12 km) |
| Ottumwa to Ninove | 4,346.43 mi (6,994.91 km) |
| Ottumwa to Nivelles | 4,366.82 mi (7,027.72 km) |
| Ottumwa to Olen | 4,365.03 mi (7,024.84 km) |
| Ottumwa to Oostakker | 4,327.36 mi (6,964.21 km) |
| Ottumwa to Oosterzele | 4,334.13 mi (6,975.11 km) |
| Ottumwa to Oostkamp | 4,305.85 mi (6,929.60 km) |
| Ottumwa to Opglabbeek | 4,395.43 mi (7,073.76 km) |
