| Olkusz to Collegno | 662.49 mi (1,066.18 km) |
| Olkusz to Cologno al Serio | 559.55 mi (900.50 km) |
| Olkusz to Cologno Monzese | 577.84 mi (929.94 km) |
| Olkusz to Colorno | 564.49 mi (908.46 km) |
| Olkusz to Comacchio | 516.68 mi (831.52 km) |
| Olkusz to Comiso | 953.44 mi (1,534.42 km) |
| Olkusz to Como | 573.41 mi (922.81 km) |
| Olkusz to Concordia Sagittaria | 439.65 mi (707.55 km) |
| Olkusz to Concorezzo | 573.04 mi (922.22 km) |
| Olkusz to Conegliano | 452.08 mi (727.55 km) |
| Olkusz to Conselice | 537.39 mi (864.84 km) |
| Olkusz to Conselve | 499.02 mi (803.10 km) |
| Olkusz to Conversano | 654.26 mi (1,052.93 km) |
| Olkusz to Copertino | 695.81 mi (1,119.80 km) |
| Olkusz to Copparo | 517.21 mi (832.36 km) |
