| Kopervik to Smolyan | 1,479.34 mi (2,380.77 km) |
| Kopervik to Sofia | 1,378.42 mi (2,218.36 km) |
| Kopervik to Sopot | 1,415.71 mi (2,278.37 km) |
| Kopervik to Sozopol | 1,505.58 mi (2,423.00 km) |
| Kopervik to Sredets | 1,496.24 mi (2,407.97 km) |
| Kopervik to Stamboliyski | 1,441.75 mi (2,320.27 km) |
| Kopervik to Stara Zagora | 1,451.25 mi (2,335.55 km) |
| Kopervik to Svilengrad | 1,505.22 mi (2,422.41 km) |
| Kopervik to Svishtov | 1,373.03 mi (2,209.68 km) |
| Kopervik to Targovishte | 1,426.87 mi (2,296.33 km) |
| Kopervik to Teteven | 1,387.72 mi (2,233.31 km) |
| Kopervik to Troyan | 1,400.82 mi (2,254.40 km) |
| Kopervik to Tryavna | 1,421.48 mi (2,287.65 km) |
| Kopervik to Tutrakan | 1,381.05 mi (2,222.58 km) |
| Kopervik to Varna | 1,464.70 mi (2,357.21 km) |
