| Erkrath to Frederick (Maryland) | 3,946.10 mi (6,350.63 km) |
| Erkrath to Fredericksburg (Texas) | 5,235.50 mi (8,425.72 km) |
| Erkrath to Fredericksburg (Virginia) | 4,001.82 mi (6,440.31 km) |
| Erkrath to Frederickson (Washington) | 5,007.67 mi (8,059.07 km) |
| Erkrath to Freeport (Illinois) | 4,273.66 mi (6,877.79 km) |
| Erkrath to Freeport (New York) | 3,738.30 mi (6,016.22 km) |
| Erkrath to Freeport (Texas) | 5,173.91 mi (8,326.61 km) |
| Erkrath to Fremont (California) | 5,570.29 mi (8,964.52 km) |
| Erkrath to Fremont (Nebraska) | 4,558.40 mi (7,336.04 km) |
| Erkrath to Fremont (Ohio) | 4,077.41 mi (6,561.96 km) |
| Erkrath to French Valley (California) | 5,664.10 mi (9,115.49 km) |
| Erkrath to Fresno (California) | 5,554.22 mi (8,938.65 km) |
| Erkrath to Fresno (Texas) | 5,146.57 mi (8,282.60 km) |
| Erkrath to Fridley (Minnesota) | 4,263.64 mi (6,861.67 km) |
| Erkrath to Friendly (Maryland) | 3,959.47 mi (6,372.15 km) |
