| Kardzhali to Fortuna Foothills (Arizona) | 6,700.83 mi (10,783.95 km) |
| Kardzhali to Foster City (California) | 6,596.06 mi (10,615.34 km) |
| Kardzhali to Fostoria (Ohio) | 5,192.30 mi (8,356.20 km) |
| Kardzhali to Fountain (Colorado) | 6,059.49 mi (9,751.80 km) |
| Kardzhali to Fountain Hills (Arizona) | 6,567.55 mi (10,569.45 km) |
| Kardzhali to Fountain Inn (South Carolina) | 5,449.93 mi (8,770.82 km) |
| Kardzhali to Fountain Valley (California) | 6,733.07 mi (10,835.83 km) |
| Kardzhali to Fountainebleau (Florida) | 5,795.08 mi (9,326.28 km) |
| Kardzhali to Four Corners (Oregon) | 6,142.95 mi (9,886.12 km) |
| Kardzhali to Four Corners (Texas) | 6,240.84 mi (10,043.66 km) |
| Kardzhali to Four Square Mile (Colorado) | 6,009.52 mi (9,671.39 km) |
| Kardzhali to Fox Crossing (Wisconsin) | 5,230.15 mi (8,417.11 km) |
| Kardzhali to Fox Lake (Illinois) | 5,308.04 mi (8,542.46 km) |
| Kardzhali to Framingham (Massachusetts) | 4,667.24 mi (7,511.20 km) |
| Kardzhali to Franconia (Virginia) | 5,054.49 mi (8,134.42 km) |
