| Southborough to Karahalli | 1,670.93 mi (2,689.11 km) |
| Southborough to Karakocan | 2,084.55 mi (3,354.75 km) |
| Southborough to Karakopru | 2,107.24 mi (3,391.27 km) |
| Southborough to Karaman | 1,874.26 mi (3,016.33 km) |
| Southborough to Karapinar | 1,863.81 mi (2,999.51 km) |
| Southborough to Karatas | 1,992.07 mi (3,205.93 km) |
| Southborough to Karatepe | 1,583.59 mi (2,548.55 km) |
| Southborough to Karayilan | 2,020.55 mi (3,251.77 km) |
| Southborough to Kargipinar | 1,947.37 mi (3,134.00 km) |
| Southborough to Karkamis | 2,089.36 mi (3,362.49 km) |
| Southborough to Karliova | 2,112.27 mi (3,399.37 km) |
| Southborough to Kars | 2,149.78 mi (3,459.74 km) |
| Southborough to Kartal | 1,544.78 mi (2,486.09 km) |
| Southborough to Kas | 1,775.84 mi (2,857.94 km) |
| Southborough to Kastamonu | 1,718.65 mi (2,765.90 km) |
