| Langenfeld to Ridgeland (Mississippi) | 4,794.84 mi (7,716.56 km) |
| Langenfeld to Ridgewood (New Jersey) | 3,748.90 mi (6,033.26 km) |
| Langenfeld to Rifle (Colorado) | 5,041.03 mi (8,112.75 km) |
| Langenfeld to Rincon (Georgia) | 4,446.93 mi (7,156.64 km) |
| Langenfeld to Ringwood (New Jersey) | 3,749.81 mi (6,034.74 km) |
| Langenfeld to Río Grande (Puerto Rico) | 4,495.04 mi (7,234.08 km) |
| Langenfeld to Rio Grande City (Texas) | 5,449.41 mi (8,769.98 km) |
| Langenfeld to Rio Linda (California) | 5,492.77 mi (8,839.76 km) |
| Langenfeld to Rio Rancho (New Mexico) | 5,242.02 mi (8,436.21 km) |
| Langenfeld to Rio Rico (Arizona) | 5,598.72 mi (9,010.26 km) |
| Langenfeld to Ripon (California) | 5,540.88 mi (8,917.19 km) |
| Langenfeld to River Edge (New Jersey) | 3,748.41 mi (6,032.48 km) |
| Langenfeld to River Falls (Wisconsin) | 4,258.59 mi (6,853.53 km) |
| Langenfeld to River Forest (Illinois) | 4,232.11 mi (6,810.92 km) |
| Langenfeld to River Grove (Illinois) | 4,231.37 mi (6,809.73 km) |
