| Martha Lake to Ratingen | 4,953.75 mi (7,972.29 km) |
| Martha Lake to Ratzeburg | 4,901.23 mi (7,887.77 km) |
| Martha Lake to Raubling | 5,283.46 mi (8,502.90 km) |
| Martha Lake to Rauenberg | 5,116.12 mi (8,233.60 km) |
| Martha Lake to Raunheim | 5,066.21 mi (8,153.28 km) |
| Martha Lake to Ravensburg | 5,225.31 mi (8,409.32 km) |
| Martha Lake to Recke | 4,912.09 mi (7,905.24 km) |
| Martha Lake to Recklinghausen | 4,944.63 mi (7,957.61 km) |
| Martha Lake to Regen | 5,235.61 mi (8,425.90 km) |
| Martha Lake to Regensburg | 5,209.21 mi (8,383.41 km) |
| Martha Lake to Regenstauf | 5,203.81 mi (8,374.72 km) |
| Martha Lake to Rehau | 5,133.82 mi (8,262.09 km) |
| Martha Lake to Rehburg-Loccum | 4,941.09 mi (7,951.91 km) |
| Martha Lake to Rehlingen-Siersburg | 5,061.33 mi (8,145.42 km) |
| Martha Lake to Reichelsheim | 5,093.09 mi (8,196.53 km) |
