| Sinop to Kluczbork | 1,011.59 mi (1,628.00 km) |
| Sinop to Knurow | 967.19 mi (1,556.54 km) |
| Sinop to Kobylka | 964.37 mi (1,552.01 km) |
| Sinop to Kokoszki | 1,140.70 mi (1,835.78 km) |
| Sinop to Kolbuszowa | 854.09 mi (1,374.52 km) |
| Sinop to Kolno | 994.72 mi (1,600.84 km) |
| Sinop to Kolo | 1,043.06 mi (1,678.64 km) |
| Sinop to Kolobrzeg | 1,225.39 mi (1,972.08 km) |
| Sinop to Koluszki | 984.64 mi (1,584.63 km) |
| Sinop to Komorniki | 1,113.50 mi (1,792.00 km) |
| Sinop to Konin | 1,056.37 mi (1,700.07 km) |
| Sinop to Konskie | 940.63 mi (1,513.79 km) |
| Sinop to Konstancin-Jeziorna | 955.55 mi (1,537.81 km) |
| Sinop to Konstantynow Lodzki | 1,000.70 mi (1,610.47 km) |
| Sinop to Koronowo | 1,112.64 mi (1,790.63 km) |
