| Oulunsalo to Karlovo | 1,540.25 mi (2,478.80 km) |
| Oulunsalo to Karnobat | 1,542.00 mi (2,481.60 km) |
| Oulunsalo to Kavarna | 1,489.80 mi (2,397.61 km) |
| Oulunsalo to Kazanlak | 1,541.93 mi (2,481.49 km) |
| Oulunsalo to Knezha | 1,481.80 mi (2,384.72 km) |
| Oulunsalo to Kostinbrod | 1,530.52 mi (2,463.13 km) |
| Oulunsalo to Kozloduy | 1,462.77 mi (2,354.10 km) |
| Oulunsalo to Kyustendil | 1,568.63 mi (2,524.46 km) |
| Oulunsalo to Levski | 1,490.15 mi (2,398.16 km) |
| Oulunsalo to Lom | 1,460.83 mi (2,350.98 km) |
| Oulunsalo to Lovech | 1,506.38 mi (2,424.29 km) |
| Oulunsalo to Lukovit | 1,502.41 mi (2,417.90 km) |
| Oulunsalo to Lyaskovets | 1,508.58 mi (2,427.82 km) |
| Oulunsalo to Mezdra | 1,506.56 mi (2,424.57 km) |
| Oulunsalo to Momchilgrad | 1,616.78 mi (2,601.96 km) |
