| Calera to Smolyan | 5,687.63 mi (9,153.35 km) |
| Calera to Sofia | 5,584.93 mi (8,988.07 km) |
| Calera to Sopot | 5,644.18 mi (9,083.42 km) |
| Calera to Sozopol | 5,771.09 mi (9,287.66 km) |
| Calera to Sredets | 5,754.41 mi (9,260.83 km) |
| Calera to Stamboliyski | 5,657.45 mi (9,104.78 km) |
| Calera to Stara Zagora | 5,689.40 mi (9,156.20 km) |
| Calera to Svilengrad | 5,740.24 mi (9,238.03 km) |
| Calera to Svishtov | 5,626.67 mi (9,055.26 km) |
| Calera to Targovishte | 5,690.80 mi (9,158.46 km) |
| Calera to Teteven | 5,613.52 mi (9,034.08 km) |
| Calera to Troyan | 5,632.92 mi (9,065.30 km) |
| Calera to Tryavna | 5,664.77 mi (9,116.56 km) |
| Calera to Tutrakan | 5,657.25 mi (9,104.47 km) |
| Calera to Varna | 5,744.04 mi (9,244.14 km) |
