| Kouvola to Blace | 1,235.08 mi (1,987.67 km) |
| Kouvola to Bogatic | 1,146.49 mi (1,845.09 km) |
| Kouvola to Bojnik | 1,250.86 mi (2,013.07 km) |
| Kouvola to Boljevac | 1,193.79 mi (1,921.21 km) |
| Kouvola to Bor | 1,171.85 mi (1,885.90 km) |
| Kouvola to Borca | 1,134.48 mi (1,825.77 km) |
| Kouvola to Bosilegrad | 1,281.31 mi (2,062.07 km) |
| Kouvola to Brus | 1,230.67 mi (1,980.57 km) |
| Kouvola to Bujanovac | 1,288.02 mi (2,072.87 km) |
| Kouvola to Cacak | 1,201.86 mi (1,934.20 km) |
| Kouvola to Cajetina | 1,217.38 mi (1,959.19 km) |
| Kouvola to Cicevac | 1,204.74 mi (1,938.83 km) |
| Kouvola to Coka | 1,065.36 mi (1,714.52 km) |
| Kouvola to Crna Trava | 1,261.09 mi (2,029.53 km) |
| Kouvola to Crvenka | 1,091.18 mi (1,756.08 km) |
