| Nagykallo to Smolyan | 457.13 mi (735.67 km) |
| Nagykallo to Sofia | 365.27 mi (587.84 km) |
| Nagykallo to Sopot | 388.04 mi (624.49 km) |
| Nagykallo to Sozopol | 472.90 mi (761.06 km) |
| Nagykallo to Sredets | 462.57 mi (744.43 km) |
| Nagykallo to Stamboliyski | 418.28 mi (673.16 km) |
| Nagykallo to Stara Zagora | 419.48 mi (675.09 km) |
| Nagykallo to Svilengrad | 473.14 mi (761.45 km) |
| Nagykallo to Svishtov | 339.59 mi (546.51 km) |
| Nagykallo to Targovishte | 393.41 mi (633.13 km) |
| Nagykallo to Teteven | 362.59 mi (583.52 km) |
| Nagykallo to Troyan | 372.36 mi (599.25 km) |
| Nagykallo to Tryavna | 389.14 mi (626.26 km) |
| Nagykallo to Tutrakan | 349.94 mi (563.17 km) |
| Nagykallo to Varna | 435.76 mi (701.29 km) |
