| Allen Park to Ratingen | 4,033.40 mi (6,491.13 km) |
| Allen Park to Ratzeburg | 4,091.84 mi (6,585.18 km) |
| Allen Park to Raubling | 4,361.61 mi (7,019.33 km) |
| Allen Park to Rauenberg | 4,175.44 mi (6,719.71 km) |
| Allen Park to Raunheim | 4,138.74 mi (6,660.65 km) |
| Allen Park to Ravensburg | 4,265.41 mi (6,864.51 km) |
| Allen Park to Recke | 4,029.12 mi (6,484.25 km) |
| Allen Park to Recklinghausen | 4,035.33 mi (6,494.23 km) |
| Allen Park to Regen | 4,354.66 mi (7,008.15 km) |
| Allen Park to Regensburg | 4,313.29 mi (6,941.57 km) |
| Allen Park to Regenstauf | 4,310.88 mi (6,937.69 km) |
| Allen Park to Rehau | 4,263.81 mi (6,861.94 km) |
| Allen Park to Rehburg-Loccum | 4,080.67 mi (6,567.20 km) |
| Allen Park to Rehlingen-Siersburg | 4,093.78 mi (6,588.30 km) |
| Allen Park to Reichelsheim | 4,164.41 mi (6,701.97 km) |
