| Highlands Ranch to Isny im Allgau | 5,212.52 mi (8,388.75 km) |
| Highlands Ranch to Isselburg | 4,902.28 mi (7,889.45 km) |
| Highlands Ranch to Issum | 4,914.11 mi (7,908.49 km) |
| Highlands Ranch to Itzehoe | 4,902.36 mi (7,889.59 km) |
| Highlands Ranch to Jena | 5,107.54 mi (8,219.79 km) |
| Highlands Ranch to Jever | 4,869.05 mi (7,835.97 km) |
| Highlands Ranch to Jork | 4,925.49 mi (7,926.80 km) |
| Highlands Ranch to Juchen | 4,936.40 mi (7,944.36 km) |
| Highlands Ranch to Julich | 4,939.75 mi (7,949.76 km) |
| Highlands Ranch to Juterbog | 5,101.56 mi (8,210.17 km) |
| Highlands Ranch to Kaarst | 4,934.94 mi (7,942.03 km) |
| Highlands Ranch to Kaiserslautern | 5,054.06 mi (8,133.72 km) |
| Highlands Ranch to Kalkar | 4,900.85 mi (7,887.15 km) |
| Highlands Ranch to Kall | 4,962.92 mi (7,987.04 km) |
| Highlands Ranch to Kaltenkirchen | 4,919.71 mi (7,917.51 km) |
