| Sinop to Koscian | 1,108.62 mi (1,784.15 km) |
| Sinop to Koscielisko | 889.05 mi (1,430.79 km) |
| Sinop to Koscierzyna | 1,145.59 mi (1,843.66 km) |
| Sinop to Kostrzyn | 1,099.74 mi (1,769.86 km) |
| Sinop to Kostrzyn nad Odra | 1,198.49 mi (1,928.79 km) |
| Sinop to Koszalin | 1,206.46 mi (1,941.60 km) |
| Sinop to Kowary | 1,096.52 mi (1,764.68 km) |
| Sinop to Kozienice | 918.42 mi (1,478.05 km) |
| Sinop to Kozuchow | 1,135.85 mi (1,827.98 km) |
| Sinop to Kozy | 937.29 mi (1,508.42 km) |
| Sinop to Krakow | 913.91 mi (1,470.79 km) |
| Sinop to Krapkowice | 1,003.20 mi (1,614.50 km) |
| Sinop to Krasnik | 867.17 mi (1,395.57 km) |
| Sinop to Krasnystaw | 838.69 mi (1,349.75 km) |
| Sinop to Krosno | 831.97 mi (1,338.92 km) |
