| Langley Park to Ratingen | 3,944.84 mi (6,348.60 km) |
| Langley Park to Ratzeburg | 4,028.97 mi (6,484.00 km) |
| Langley Park to Raubling | 4,261.89 mi (6,858.85 km) |
| Langley Park to Rauenberg | 4,076.97 mi (6,561.24 km) |
| Langley Park to Raunheim | 4,044.81 mi (6,509.49 km) |
| Langley Park to Ravensburg | 4,159.21 mi (6,693.60 km) |
| Langley Park to Recke | 3,950.15 mi (6,357.15 km) |
| Langley Park to Recklinghausen | 3,949.50 mi (6,356.10 km) |
| Langley Park to Regen | 4,265.29 mi (6,864.31 km) |
| Langley Park to Regensburg | 4,221.54 mi (6,793.92 km) |
| Langley Park to Regenstauf | 4,219.95 mi (6,791.36 km) |
| Langley Park to Rehau | 4,180.09 mi (6,727.20 km) |
| Langley Park to Rehburg-Loccum | 4,005.54 mi (6,446.29 km) |
| Langley Park to Rehlingen-Siersburg | 3,991.18 mi (6,423.18 km) |
| Langley Park to Reichelsheim | 4,069.33 mi (6,548.95 km) |
