| Highlands Ranch to Rheinbach | 4,972.35 mi (8,002.23 km) |
| Highlands Ranch to Rheinberg | 4,919.52 mi (7,917.20 km) |
| Highlands Ranch to Rheine | 4,913.00 mi (7,906.70 km) |
| Highlands Ranch to Rheinfelden (Baden) | 5,142.27 mi (8,275.69 km) |
| Highlands Ranch to Ribnitz-Damgarten | 4,974.46 mi (8,005.63 km) |
| Highlands Ranch to Richterich | 4,935.08 mi (7,942.25 km) |
| Highlands Ranch to Riedlingen | 5,171.45 mi (8,322.64 km) |
| Highlands Ranch to Riegelsberg | 5,033.08 mi (8,099.95 km) |
| Highlands Ranch to Rielasingen-Worblingen | 5,169.98 mi (8,320.29 km) |
| Highlands Ranch to Riesa | 5,141.75 mi (8,274.85 km) |
| Highlands Ranch to Rietberg | 4,966.95 mi (7,993.54 km) |
| Highlands Ranch to Rinteln | 4,969.36 mi (7,997.41 km) |
| Highlands Ranch to Ritterhude | 4,913.29 mi (7,907.17 km) |
| Highlands Ranch to Rodenbach | 5,062.94 mi (8,148.01 km) |
| Highlands Ranch to Rodental | 5,122.07 mi (8,243.18 km) |
