| Opmeer to Karlovo | 1,149.58 mi (1,850.06 km) |
| Opmeer to Karnobat | 1,230.96 mi (1,981.04 km) |
| Opmeer to Kavarna | 1,246.86 mi (2,006.63 km) |
| Opmeer to Kazanlak | 1,172.62 mi (1,887.16 km) |
| Opmeer to Knezha | 1,082.39 mi (1,741.94 km) |
| Opmeer to Kostinbrod | 1,083.77 mi (1,744.17 km) |
| Opmeer to Kozloduy | 1,056.27 mi (1,699.90 km) |
| Opmeer to Kyustendil | 1,091.70 mi (1,756.92 km) |
| Opmeer to Levski | 1,127.57 mi (1,814.64 km) |
| Opmeer to Lom | 1,036.06 mi (1,667.38 km) |
| Opmeer to Lovech | 1,122.92 mi (1,807.17 km) |
| Opmeer to Lukovit | 1,099.59 mi (1,769.62 km) |
| Opmeer to Lyaskovets | 1,161.72 mi (1,869.61 km) |
| Opmeer to Mezdra | 1,084.96 mi (1,746.07 km) |
| Opmeer to Momchilgrad | 1,225.92 mi (1,972.93 km) |
