| Sterling Heights to Ratingen | 4,011.59 mi (6,456.03 km) |
| Sterling Heights to Ratzeburg | 4,069.41 mi (6,549.08 km) |
| Sterling Heights to Raubling | 4,340.05 mi (6,984.63 km) |
| Sterling Heights to Rauenberg | 4,153.87 mi (6,685.01 km) |
| Sterling Heights to Raunheim | 4,117.05 mi (6,625.76 km) |
| Sterling Heights to Ravensburg | 4,244.04 mi (6,830.13 km) |
| Sterling Heights to Recke | 4,007.08 mi (6,448.77 km) |
| Sterling Heights to Recklinghausen | 4,013.45 mi (6,459.03 km) |
| Sterling Heights to Regen | 4,332.82 mi (6,973.00 km) |
| Sterling Heights to Regensburg | 4,291.52 mi (6,906.54 km) |
| Sterling Heights to Regenstauf | 4,289.09 mi (6,902.62 km) |
| Sterling Heights to Rehau | 4,241.84 mi (6,826.59 km) |
| Sterling Heights to Rehburg-Loccum | 4,058.52 mi (6,531.56 km) |
| Sterling Heights to Rehlingen-Siersburg | 4,072.34 mi (6,553.80 km) |
| Sterling Heights to Reichelsheim | 4,142.76 mi (6,667.12 km) |
