| Owings Mills to Ratingen | 3,917.77 mi (6,305.04 km) |
| Owings Mills to Ratzeburg | 4,000.99 mi (6,438.97 km) |
| Owings Mills to Raubling | 4,235.35 mi (6,816.14 km) |
| Owings Mills to Rauenberg | 4,050.33 mi (6,518.37 km) |
| Owings Mills to Raunheim | 4,017.97 mi (6,466.30 km) |
| Owings Mills to Ravensburg | 4,132.91 mi (6,651.27 km) |
| Owings Mills to Recke | 3,922.72 mi (6,313.01 km) |
| Owings Mills to Recklinghausen | 3,922.33 mi (6,312.37 km) |
| Owings Mills to Regen | 4,238.33 mi (6,820.93 km) |
| Owings Mills to Regensburg | 4,194.67 mi (6,750.66 km) |
| Owings Mills to Regenstauf | 4,193.04 mi (6,748.05 km) |
| Owings Mills to Rehau | 4,152.89 mi (6,683.43 km) |
| Owings Mills to Rehburg-Loccum | 3,977.98 mi (6,401.94 km) |
| Owings Mills to Rehlingen-Siersburg | 3,964.69 mi (6,380.55 km) |
| Owings Mills to Reichelsheim | 4,042.55 mi (6,505.86 km) |
