| Kalkar to Bumbesti-Jiu | 901.54 mi (1,450.90 km) |
| Kalkar to Busteni | 978.36 mi (1,574.51 km) |
| Kalkar to Buzau | 1,040.30 mi (1,674.20 km) |
| Kalkar to Cajvana | 918.79 mi (1,478.65 km) |
| Kalkar to Calafat | 936.58 mi (1,507.28 km) |
| Kalkar to Calan | 864.47 mi (1,391.22 km) |
| Kalkar to Calarasi | 1,098.37 mi (1,767.66 km) |
| Kalkar to Campia Turzii | 869.20 mi (1,398.84 km) |
| Kalkar to Campina | 997.38 mi (1,605.13 km) |
| Kalkar to Campulung | 964.12 mi (1,551.60 km) |
| Kalkar to Campulung Moldovenesc | 906.35 mi (1,458.63 km) |
| Kalkar to Caracal | 984.07 mi (1,583.70 km) |
| Kalkar to Caransebes | 846.27 mi (1,361.95 km) |
| Kalkar to Carei | 773.02 mi (1,244.06 km) |
| Kalkar to Cernavoda | 1,121.14 mi (1,804.31 km) |
