| Sinop to Chojnice | 1,141.30 mi (1,836.74 km) |
| Sinop to Chojnow | 1,107.47 mi (1,782.31 km) |
| Sinop to Chorzow | 959.85 mi (1,544.72 km) |
| Sinop to Choszczno | 1,192.08 mi (1,918.47 km) |
| Sinop to Chrzanow | 936.86 mi (1,507.73 km) |
| Sinop to Ciechanow | 1,006.74 mi (1,620.19 km) |
| Sinop to Ciechocinek | 1,066.43 mi (1,716.25 km) |
| Sinop to Cieszyn | 953.70 mi (1,534.84 km) |
| Sinop to Czarna Bialostocka | 952.12 mi (1,532.29 km) |
| Sinop to Czarnkow | 1,141.96 mi (1,837.81 km) |
| Sinop to Czechowice-Dziedzice | 944.43 mi (1,519.92 km) |
| Sinop to Czeladz | 955.95 mi (1,538.45 km) |
| Sinop to Czersk Pomorski | 1,131.70 mi (1,821.29 km) |
| Sinop to Czestochowa | 971.57 mi (1,563.59 km) |
| Sinop to Czluchow | 1,145.84 mi (1,844.05 km) |
