| Kalkar to Pyskowice | 542.62 mi (873.27 km) |
| Kalkar to Raciborz | 531.98 mi (856.14 km) |
| Kalkar to Radom | 637.65 mi (1,026.19 km) |
| Kalkar to Radomsko | 568.25 mi (914.51 km) |
| Kalkar to Radzionkow Nowy | 553.99 mi (891.56 km) |
| Kalkar to Radzymin | 632.93 mi (1,018.60 km) |
| Kalkar to Radzyn Podlaski | 696.97 mi (1,121.66 km) |
| Kalkar to Rawa Mazowiecka | 596.24 mi (959.55 km) |
| Kalkar to Rawicz | 452.37 mi (728.02 km) |
| Kalkar to Reda | 536.58 mi (863.54 km) |
| Kalkar to Rogozno | 457.88 mi (736.89 km) |
| Kalkar to Ropczyce | 676.64 mi (1,088.95 km) |
| Kalkar to Ruda Slaska | 554.88 mi (892.99 km) |
| Kalkar to Rumia | 537.51 mi (865.04 km) |
| Kalkar to Rury | 697.40 mi (1,122.36 km) |
