| Rockville to Isny im Allgau | 4,182.92 mi (6,731.76 km) |
| Rockville to Isselburg | 3,917.91 mi (6,305.27 km) |
| Rockville to Issum | 3,924.06 mi (6,315.16 km) |
| Rockville to Itzehoe | 3,978.51 mi (6,402.79 km) |
| Rockville to Jena | 4,144.71 mi (6,670.26 km) |
| Rockville to Jever | 3,927.16 mi (6,320.16 km) |
| Rockville to Jork | 3,995.48 mi (6,430.10 km) |
| Rockville to Juchen | 3,938.96 mi (6,339.14 km) |
| Rockville to Julich | 3,938.08 mi (6,337.72 km) |
| Rockville to Juterbog | 4,169.08 mi (6,709.49 km) |
| Rockville to Kaarst | 3,940.41 mi (6,341.47 km) |
| Rockville to Kaiserslautern | 4,036.59 mi (6,496.26 km) |
| Rockville to Kalkar | 3,913.54 mi (6,298.24 km) |
| Rockville to Kall | 3,955.94 mi (6,366.48 km) |
| Rockville to Kaltenkirchen | 3,997.44 mi (6,433.25 km) |
