| Billdal to Ratingen | 479.46 mi (771.62 km) |
| Billdal to Ratzeburg | 272.24 mi (438.12 km) |
| Billdal to Raubling | 676.82 mi (1,089.24 km) |
| Billdal to Rauenberg | 589.56 mi (948.80 km) |
| Billdal to Raunheim | 541.60 mi (871.62 km) |
| Billdal to Ravensburg | 683.97 mi (1,100.75 km) |
| Billdal to Recke | 396.90 mi (638.75 km) |
| Billdal to Recklinghausen | 456.09 mi (734.00 km) |
| Billdal to Regen | 597.39 mi (961.40 km) |
| Billdal to Regensburg | 591.93 mi (952.61 km) |
| Billdal to Regenstauf | 584.56 mi (940.76 km) |
| Billdal to Rehau | 506.69 mi (815.44 km) |
| Billdal to Rehburg-Loccum | 370.62 mi (596.45 km) |
| Billdal to Rehlingen-Siersburg | 606.88 mi (976.67 km) |
| Billdal to Reichelsheim | 558.07 mi (898.13 km) |
