| Round Rock to Koscian | 5,490.76 mi (8,836.53 km) |
| Round Rock to Koscielisko | 5,721.76 mi (9,208.29 km) |
| Round Rock to Koscierzyna | 5,449.50 mi (8,770.12 km) |
| Round Rock to Kostrzyn | 5,497.06 mi (8,846.66 km) |
| Round Rock to Kostrzyn nad Odra | 5,402.62 mi (8,694.67 km) |
| Round Rock to Koszalin | 5,387.88 mi (8,670.96 km) |
| Round Rock to Kowary | 5,516.09 mi (8,877.29 km) |
| Round Rock to Kozienice | 5,675.92 mi (9,134.51 km) |
| Round Rock to Kozuchow | 5,468.62 mi (8,800.90 km) |
| Round Rock to Kozy | 5,670.79 mi (9,126.26 km) |
| Round Rock to Krakow | 5,689.32 mi (9,156.07 km) |
| Round Rock to Krapkowice | 5,604.00 mi (9,018.77 km) |
| Round Rock to Krasnik | 5,727.33 mi (9,217.24 km) |
| Round Rock to Krasnystaw | 5,755.78 mi (9,263.03 km) |
| Round Rock to Krosno | 5,767.78 mi (9,282.35 km) |
