| Langenfeld to Robertsville (New Jersey) | 3,784.90 mi (6,091.20 km) |
| Langenfeld to Robinson (Texas) | 5,111.58 mi (8,226.29 km) |
| Langenfeld to Robstown (Texas) | 5,328.85 mi (8,575.95 km) |
| Langenfeld to Rochester (Michigan) | 4,020.09 mi (6,469.70 km) |
| Langenfeld to Rochester (Minnesota) | 4,295.12 mi (6,912.33 km) |
| Langenfeld to Rochester (New Hampshire) | 3,523.40 mi (5,670.36 km) |
| Langenfeld to Rochester (New York) | 3,788.85 mi (6,097.57 km) |
| Langenfeld to Rochester Hills (Michigan) | 4,022.49 mi (6,473.56 km) |
| Langenfeld to Rock Hill (South Carolina) | 4,308.16 mi (6,933.31 km) |
| Langenfeld to Rock Island (Illinois) | 4,353.58 mi (7,006.40 km) |
| Langenfeld to Rock Springs (Wyoming) | 4,971.84 mi (8,001.40 km) |
| Langenfeld to Rockford (Illinois) | 4,259.82 mi (6,855.51 km) |
| Langenfeld to Rockledge (Florida) | 4,625.53 mi (7,444.06 km) |
| Langenfeld to Rocklin (California) | 5,480.39 mi (8,819.83 km) |
| Langenfeld to Rockport (Texas) | 5,293.40 mi (8,518.91 km) |
