| Round Rock to Isny im Allgau | 5,424.00 mi (8,729.08 km) |
| Round Rock to Isselburg | 5,138.57 mi (8,269.74 km) |
| Round Rock to Issum | 5,147.10 mi (8,283.45 km) |
| Round Rock to Itzehoe | 5,174.21 mi (8,327.09 km) |
| Round Rock to Jena | 5,359.21 mi (8,624.81 km) |
| Round Rock to Jever | 5,130.09 mi (8,256.08 km) |
| Round Rock to Jork | 5,194.12 mi (8,359.12 km) |
| Round Rock to Juchen | 5,165.12 mi (8,312.46 km) |
| Round Rock to Julich | 5,165.91 mi (8,313.73 km) |
| Round Rock to Juterbog | 5,371.01 mi (8,643.80 km) |
| Round Rock to Kaarst | 5,165.44 mi (8,312.97 km) |
| Round Rock to Kaiserslautern | 5,271.62 mi (8,483.86 km) |
| Round Rock to Kalkar | 5,135.35 mi (8,264.54 km) |
| Round Rock to Kall | 5,186.06 mi (8,346.15 km) |
| Round Rock to Kaltenkirchen | 5,192.69 mi (8,356.83 km) |
