| Kalkar to Cologno al Serio | 452.72 mi (728.58 km) |
| Kalkar to Cologno Monzese | 450.13 mi (724.41 km) |
| Kalkar to Colorno | 506.17 mi (814.60 km) |
| Kalkar to Comacchio | 556.41 mi (895.46 km) |
| Kalkar to Comiso | 1,099.47 mi (1,769.42 km) |
| Kalkar to Como | 428.84 mi (690.15 km) |
| Kalkar to Concordia Sagittaria | 508.97 mi (819.11 km) |
| Kalkar to Concorezzo | 446.89 mi (719.20 km) |
| Kalkar to Conegliano | 487.63 mi (784.76 km) |
| Kalkar to Conselice | 560.24 mi (901.61 km) |
| Kalkar to Conselve | 516.57 mi (831.33 km) |
| Kalkar to Conversano | 903.68 mi (1,454.32 km) |
| Kalkar to Copertino | 970.38 mi (1,561.68 km) |
| Kalkar to Copparo | 536.37 mi (863.20 km) |
| Kalkar to Corato | 873.88 mi (1,406.37 km) |
