| Groningen to Karlovo | 1,110.83 mi (1,787.71 km) |
| Groningen to Karnobat | 1,187.92 mi (1,911.77 km) |
| Groningen to Kavarna | 1,199.38 mi (1,930.21 km) |
| Groningen to Kazanlak | 1,132.71 mi (1,822.92 km) |
| Groningen to Knezha | 1,042.69 mi (1,678.04 km) |
| Groningen to Kostinbrod | 1,048.11 mi (1,686.78 km) |
| Groningen to Kozloduy | 1,016.45 mi (1,635.82 km) |
| Groningen to Kyustendil | 1,058.92 mi (1,704.17 km) |
| Groningen to Levski | 1,086.06 mi (1,747.84 km) |
| Groningen to Lom | 997.22 mi (1,604.87 km) |
| Groningen to Lovech | 1,082.95 mi (1,742.85 km) |
| Groningen to Lukovit | 1,060.61 mi (1,706.89 km) |
| Groningen to Lyaskovets | 1,119.82 mi (1,802.17 km) |
| Groningen to Mezdra | 1,047.17 mi (1,685.26 km) |
| Groningen to Momchilgrad | 1,188.90 mi (1,913.35 km) |
