| Highlands Ranch to Ratingen | 4,938.80 mi (7,948.23 km) |
| Highlands Ranch to Ratzeburg | 4,949.96 mi (7,966.20 km) |
| Highlands Ranch to Raubling | 5,276.42 mi (8,491.58 km) |
| Highlands Ranch to Rauenberg | 5,093.39 mi (8,197.02 km) |
| Highlands Ranch to Raunheim | 5,050.08 mi (8,127.32 km) |
| Highlands Ranch to Ravensburg | 5,193.78 mi (8,358.58 km) |
| Highlands Ranch to Recke | 4,918.13 mi (7,914.96 km) |
| Highlands Ranch to Recklinghausen | 4,936.00 mi (7,943.73 km) |
| Highlands Ranch to Regen | 5,251.80 mi (8,451.95 km) |
| Highlands Ranch to Regensburg | 5,215.78 mi (8,393.98 km) |
| Highlands Ranch to Regenstauf | 5,212.02 mi (8,387.93 km) |
| Highlands Ranch to Rehau | 5,153.74 mi (8,294.15 km) |
| Highlands Ranch to Rehburg-Loccum | 4,961.23 mi (7,984.33 km) |
| Highlands Ranch to Rehlingen-Siersburg | 5,020.93 mi (8,080.41 km) |
| Highlands Ranch to Reichelsheim | 5,076.96 mi (8,170.58 km) |
