| Ottumwa to Reichenbach/Vogtland | 4,651.09 mi (7,485.20 km) |
| Ottumwa to Reinbek | 4,462.03 mi (7,180.94 km) |
| Ottumwa to Reinfeld | 4,456.88 mi (7,172.65 km) |
| Ottumwa to Reinheim | 4,561.00 mi (7,340.23 km) |
| Ottumwa to Reiskirchen | 4,529.87 mi (7,290.12 km) |
| Ottumwa to Rellingen | 4,441.94 mi (7,148.62 km) |
| Ottumwa to Remagen | 4,473.24 mi (7,198.98 km) |
| Ottumwa to Remscheid | 4,448.45 mi (7,159.09 km) |
| Ottumwa to Rendsburg | 4,411.25 mi (7,099.22 km) |
| Ottumwa to Renningen | 4,608.00 mi (7,415.86 km) |
| Ottumwa to Reutlingen | 4,629.97 mi (7,451.22 km) |
| Ottumwa to Rhaude | 4,383.85 mi (7,055.12 km) |
| Ottumwa to Rheda-Wiedenbruck | 4,461.53 mi (7,180.13 km) |
| Ottumwa to Rhede | 4,405.47 mi (7,089.93 km) |
| Ottumwa to Rheinau | 4,575.15 mi (7,363.00 km) |
