| Sinop to Chivasso | 1,374.62 mi (2,212.24 km) |
| Sinop to Ciampino | 1,156.23 mi (1,860.77 km) |
| Sinop to Cicciano | 1,066.90 mi (1,717.01 km) |
| Sinop to Cingoli | 1,114.45 mi (1,793.53 km) |
| Sinop to Cinisello Balsamo | 1,310.28 mi (2,108.68 km) |
| Sinop to Cinisi | 1,192.00 mi (1,918.34 km) |
| Sinop to Cirie | 1,388.56 mi (2,234.66 km) |
| Sinop to Ciro Marina | 959.91 mi (1,544.83 km) |
| Sinop to Cislago | 1,322.53 mi (2,128.41 km) |
| Sinop to Cisterna di Latina | 1,146.76 mi (1,845.54 km) |
| Sinop to Cisternino | 921.23 mi (1,482.57 km) |
| Sinop to Citta di Castello | 1,162.88 mi (1,871.48 km) |
| Sinop to Citta Sant'Angelo | 1,076.57 mi (1,732.57 km) |
| Sinop to Cittadella | 1,186.65 mi (1,909.73 km) |
| Sinop to Cittanova | 1,035.59 mi (1,666.63 km) |
