| Sierpc to Chivasso | 751.30 mi (1,209.11 km) |
| Sierpc to Ciampino | 833.22 mi (1,340.95 km) |
| Sierpc to Cicciano | 857.69 mi (1,380.32 km) |
| Sierpc to Cingoli | 720.99 mi (1,160.32 km) |
| Sierpc to Cinisello Balsamo | 690.85 mi (1,111.82 km) |
| Sierpc to Cinisi | 1,064.24 mi (1,712.73 km) |
| Sierpc to Cirie | 758.19 mi (1,220.18 km) |
| Sierpc to Ciro Marina | 941.45 mi (1,515.11 km) |
| Sierpc to Cislago | 693.22 mi (1,115.63 km) |
| Sierpc to Cisterna di Latina | 842.68 mi (1,356.16 km) |
| Sierpc to Cisternino | 845.99 mi (1,361.49 km) |
| Sierpc to Citta di Castello | 734.49 mi (1,182.05 km) |
| Sierpc to Citta Sant'Angelo | 761.81 mi (1,226.02 km) |
| Sierpc to Cittadella | 612.49 mi (985.71 km) |
| Sierpc to Cittanova | 1,018.65 mi (1,639.35 km) |
