| Backnang to Fortuna Foothills (Arizona) | 5,825.20 mi (9,374.75 km) |
| Backnang to Foster City (California) | 5,768.88 mi (9,284.12 km) |
| Backnang to Fostoria (Ohio) | 4,273.36 mi (6,877.30 km) |
| Backnang to Fountain (Colorado) | 5,169.21 mi (8,319.04 km) |
| Backnang to Fountain Hills (Arizona) | 5,685.21 mi (9,149.47 km) |
| Backnang to Fountain Inn (South Carolina) | 4,529.02 mi (7,288.75 km) |
| Backnang to Fountain Valley (California) | 5,874.23 mi (9,453.66 km) |
| Backnang to Fountainebleau (Florida) | 4,886.28 mi (7,863.71 km) |
| Backnang to Four Corners (Oregon) | 5,344.32 mi (8,600.85 km) |
| Backnang to Four Corners (Texas) | 5,321.11 mi (8,563.51 km) |
| Backnang to Four Square Mile (Colorado) | 5,122.34 mi (8,243.61 km) |
| Backnang to Fox Crossing (Wisconsin) | 4,320.79 mi (6,953.63 km) |
| Backnang to Fox Lake (Illinois) | 4,395.04 mi (7,073.13 km) |
| Backnang to Framingham (Massachusetts) | 3,746.17 mi (6,028.88 km) |
| Backnang to Franconia (Virginia) | 4,133.44 mi (6,652.13 km) |
