| Koszalin to Devnya | 916.91 mi (1,475.62 km) |
| Koszalin to Dimitrovgrad | 943.27 mi (1,518.05 km) |
| Koszalin to Dobrich | 903.01 mi (1,453.25 km) |
| Koszalin to Dospat | 941.19 mi (1,514.70 km) |
| Koszalin to Dupnitsa | 883.21 mi (1,421.39 km) |
| Koszalin to Elhovo | 956.93 mi (1,540.03 km) |
| Koszalin to Etropole | 861.76 mi (1,386.87 km) |
| Koszalin to Gabrovo | 886.26 mi (1,426.29 km) |
| Koszalin to Gorna Oryahovitsa | 877.58 mi (1,412.32 km) |
| Koszalin to Gotse Delchev | 939.09 mi (1,511.31 km) |
| Koszalin to Harmanli | 956.93 mi (1,540.03 km) |
| Koszalin to Haskovo | 949.96 mi (1,528.81 km) |
| Koszalin to Ihtiman | 883.93 mi (1,422.55 km) |
| Koszalin to Isperih | 868.60 mi (1,397.88 km) |
| Koszalin to Kardzhali | 963.89 mi (1,551.23 km) |
