| Ibbenburen to Karlovo | 1,034.92 mi (1,665.54 km) |
| Ibbenburen to Karnobat | 1,114.16 mi (1,793.06 km) |
| Ibbenburen to Kavarna | 1,128.33 mi (1,815.88 km) |
| Ibbenburen to Kazanlak | 1,057.34 mi (1,701.62 km) |
| Ibbenburen to Knezha | 967.17 mi (1,556.52 km) |
| Ibbenburen to Kostinbrod | 970.91 mi (1,562.54 km) |
| Ibbenburen to Kozloduy | 940.98 mi (1,514.36 km) |
| Ibbenburen to Kyustendil | 980.74 mi (1,578.36 km) |
| Ibbenburen to Levski | 1,011.45 mi (1,627.77 km) |
| Ibbenburen to Lom | 921.29 mi (1,482.67 km) |
| Ibbenburen to Lovech | 1,007.58 mi (1,621.55 km) |
| Ibbenburen to Lukovit | 984.78 mi (1,584.84 km) |
| Ibbenburen to Lyaskovets | 1,045.43 mi (1,682.45 km) |
| Ibbenburen to Mezdra | 970.81 mi (1,562.37 km) |
| Ibbenburen to Momchilgrad | 1,112.29 mi (1,790.05 km) |
