| Kalkar to Ratzeburg | 230.50 mi (370.95 km) |
| Kalkar to Raubling | 376.34 mi (605.66 km) |
| Kalkar to Rauenberg | 200.92 mi (323.34 km) |
| Kalkar to Raunheim | 151.66 mi (244.08 km) |
| Kalkar to Ravensburg | 310.80 mi (500.19 km) |
| Kalkar to Recke | 74.66 mi (120.15 km) |
| Kalkar to Recklinghausen | 38.75 mi (62.36 km) |
| Kalkar to Regen | 357.04 mi (574.60 km) |
| Kalkar to Regensburg | 316.83 mi (509.89 km) |
| Kalkar to Regenstauf | 313.89 mi (505.16 km) |
| Kalkar to Rehau | 269.25 mi (433.32 km) |
| Kalkar to Rehburg-Loccum | 133.15 mi (214.29 km) |
| Kalkar to Rehlingen-Siersburg | 164.65 mi (264.97 km) |
| Kalkar to Reichelsheim | 178.77 mi (287.70 km) |
| Kalkar to Reichenbach/Vogtland | 271.43 mi (436.82 km) |
