| Sinop to Krosno Odrzanskie | 1,163.93 mi (1,873.17 km) |
| Sinop to Krotoszyn | 1,065.68 mi (1,715.05 km) |
| Sinop to Kruszwica | 1,072.87 mi (1,726.62 km) |
| Sinop to Krynica | 851.70 mi (1,370.68 km) |
| Sinop to Krzeszowice | 927.99 mi (1,493.46 km) |
| Sinop to Kudowa-Zdroj | 1,069.86 mi (1,721.78 km) |
| Sinop to Kutno | 1,019.53 mi (1,640.77 km) |
| Sinop to Kwidzyn | 1,099.17 mi (1,768.95 km) |
| Sinop to Lancut | 829.97 mi (1,335.70 km) |
| Sinop to Lapy | 946.41 mi (1,523.10 km) |
| Sinop to Lask | 1,001.27 mi (1,611.40 km) |
| Sinop to Laziska Gorne | 958.50 mi (1,542.56 km) |
| Sinop to Lebork | 1,172.07 mi (1,886.26 km) |
| Sinop to Leczna | 863.13 mi (1,389.08 km) |
| Sinop to Leczyca | 1,017.54 mi (1,637.57 km) |
