| Siechnice to Cortona | 588.22 mi (946.65 km) |
| Siechnice to Cosenza | 812.10 mi (1,306.95 km) |
| Siechnice to Cossato | 559.10 mi (899.79 km) |
| Siechnice to Costa Volpino | 483.24 mi (777.69 km) |
| Siechnice to Creazzo | 460.70 mi (741.43 km) |
| Siechnice to Crema | 520.80 mi (838.15 km) |
| Siechnice to Cremona | 523.28 mi (842.13 km) |
| Siechnice to Crevalcore | 517.35 mi (832.60 km) |
| Siechnice to Crispiano | 721.12 mi (1,160.52 km) |
| Siechnice to Crosia | 792.72 mi (1,275.76 km) |
| Siechnice to Crotone | 825.90 mi (1,329.16 km) |
| Siechnice to Cuneo | 639.80 mi (1,029.66 km) |
| Siechnice to Cuorgne | 585.38 mi (942.08 km) |
| Siechnice to Cusano Milanino | 526.60 mi (847.47 km) |
| Siechnice to Cutro | 829.43 mi (1,334.84 km) |
