| Round Rock to Karahalli | 6,589.10 mi (10,604.14 km) |
| Round Rock to Karakocan | 6,919.36 mi (11,135.64 km) |
| Round Rock to Karakopru | 6,976.90 mi (11,228.23 km) |
| Round Rock to Karaman | 6,783.27 mi (10,916.61 km) |
| Round Rock to Karapinar | 6,767.46 mi (10,891.17 km) |
| Round Rock to Karatas | 6,893.34 mi (11,093.75 km) |
| Round Rock to Karatepe | 6,484.15 mi (10,435.24 km) |
| Round Rock to Karayilan | 6,915.12 mi (11,128.80 km) |
| Round Rock to Kargipinar | 6,853.45 mi (11,029.56 km) |
| Round Rock to Karkamis | 6,969.53 mi (11,216.37 km) |
| Round Rock to Karliova | 6,930.45 mi (11,153.48 km) |
| Round Rock to Kars | 6,918.30 mi (11,133.92 km) |
| Round Rock to Kartal | 6,448.52 mi (10,377.89 km) |
| Round Rock to Kas | 6,699.47 mi (10,781.76 km) |
| Round Rock to Kastamonu | 6,583.30 mi (10,594.79 km) |
