| Round Rock to Kamen | 5,191.29 mi (8,354.58 km) |
| Round Rock to Kamenz | 5,435.86 mi (8,748.17 km) |
| Round Rock to Kamp-Lintfort | 5,152.52 mi (8,292.19 km) |
| Round Rock to Kandel | 5,301.24 mi (8,531.52 km) |
| Round Rock to Kappeln | 5,161.81 mi (8,307.12 km) |
| Round Rock to Karben | 5,281.11 mi (8,499.13 km) |
| Round Rock to Karlsdorf-Neuthard | 5,312.53 mi (8,549.69 km) |
| Round Rock to Karlsfeld | 5,458.98 mi (8,785.38 km) |
| Round Rock to Karlsruhe | 5,311.79 mi (8,548.49 km) |
| Round Rock to Kassel | 5,268.57 mi (8,478.94 km) |
| Round Rock to Kaufbeuren | 5,439.48 mi (8,754.00 km) |
| Round Rock to Kaufering | 5,441.77 mi (8,757.68 km) |
| Round Rock to Kaufungen | 5,274.26 mi (8,488.10 km) |
| Round Rock to Kehl | 5,305.07 mi (8,537.68 km) |
| Round Rock to Kelheim | 5,447.03 mi (8,766.15 km) |
