| Backnang to Frederick (Maryland) | 4,113.93 mi (6,620.74 km) |
| Backnang to Fredericksburg (Texas) | 5,413.55 mi (8,712.26 km) |
| Backnang to Fredericksburg (Virginia) | 4,168.06 mi (6,707.85 km) |
| Backnang to Frederickson (Washington) | 5,200.31 mi (8,369.08 km) |
| Backnang to Freeport (Illinois) | 4,454.99 mi (7,169.61 km) |
| Backnang to Freeport (New York) | 3,904.18 mi (6,283.17 km) |
| Backnang to Freeport (Texas) | 5,347.42 mi (8,605.84 km) |
| Backnang to Fremont (California) | 5,762.98 mi (9,274.62 km) |
| Backnang to Fremont (Nebraska) | 4,743.31 mi (7,633.62 km) |
| Backnang to Fremont (Ohio) | 4,252.93 mi (6,844.43 km) |
| Backnang to French Valley (California) | 5,855.14 mi (9,422.93 km) |
| Backnang to Fresno (California) | 5,746.53 mi (9,248.14 km) |
| Backnang to Fresno (Texas) | 5,320.75 mi (8,562.92 km) |
| Backnang to Fridley (Minnesota) | 4,449.37 mi (7,160.58 km) |
| Backnang to Friendly (Maryland) | 4,125.85 mi (6,639.92 km) |
