| Langenfeld to Rockville (Maryland) | 3,956.40 mi (6,367.22 km) |
| Langenfeld to Rockville Centre (New York) | 3,744.12 mi (6,025.58 km) |
| Langenfeld to Rockwall (Texas) | 5,008.02 mi (8,059.63 km) |
| Langenfeld to Rocky Mount (North Carolina) | 4,128.88 mi (6,644.79 km) |
| Langenfeld to Rocky Point (New York) | 3,703.95 mi (5,960.93 km) |
| Langenfeld to Rocky River (Ohio) | 4,028.81 mi (6,483.74 km) |
| Langenfeld to Roessleville (New York) | 3,660.76 mi (5,891.42 km) |
| Langenfeld to Rogers (Arkansas) | 4,745.14 mi (7,636.57 km) |
| Langenfeld to Rogers (Minnesota) | 4,275.23 mi (6,880.32 km) |
| Langenfeld to Rohnert Park (California) | 5,546.76 mi (8,926.64 km) |
| Langenfeld to Rolla (Missouri) | 4,573.32 mi (7,360.04 km) |
| Langenfeld to Rolling Meadows (Illinois) | 4,230.95 mi (6,809.06 km) |
| Langenfeld to Roma (Texas) | 5,454.49 mi (8,778.15 km) |
| Langenfeld to Rome (Georgia) | 4,507.09 mi (7,253.46 km) |
| Langenfeld to Rome (New York) | 3,704.00 mi (5,961.01 km) |
