| Sinop to Jozefow | 954.11 mi (1,535.50 km) |
| Sinop to Kalisz | 1,045.11 mi (1,681.94 km) |
| Sinop to Kamien Pomorski | 1,244.33 mi (2,002.56 km) |
| Sinop to Kamienna Gora | 1,088.43 mi (1,751.66 km) |
| Sinop to Karczew | 951.30 mi (1,530.96 km) |
| Sinop to Kartuzy | 1,148.60 mi (1,848.49 km) |
| Sinop to Katowice | 956.14 mi (1,538.76 km) |
| Sinop to Kedzierzyn-Kozle | 990.31 mi (1,593.75 km) |
| Sinop to Kepno | 1,031.02 mi (1,659.27 km) |
| Sinop to Ketrzyn | 1,044.08 mi (1,680.29 km) |
| Sinop to Kety | 935.83 mi (1,506.07 km) |
| Sinop to Kielce | 919.71 mi (1,480.13 km) |
| Sinop to Kielczow | 1,055.99 mi (1,699.46 km) |
| Sinop to Klobuck | 982.65 mi (1,581.42 km) |
| Sinop to Klodzko | 1,053.47 mi (1,695.39 km) |
