| Montegrotto Terme to Karlovo | 672.71 mi (1,082.63 km) |
| Montegrotto Terme to Karnobat | 777.06 mi (1,250.56 km) |
| Montegrotto Terme to Kavarna | 826.18 mi (1,329.62 km) |
| Montegrotto Terme to Kazanlak | 701.62 mi (1,129.15 km) |
| Montegrotto Terme to Knezha | 619.44 mi (996.89 km) |
| Montegrotto Terme to Kostinbrod | 592.98 mi (954.30 km) |
| Montegrotto Terme to Kozloduy | 597.40 mi (961.42 km) |
| Montegrotto Terme to Kyustendil | 582.33 mi (937.17 km) |
| Montegrotto Terme to Levski | 672.60 mi (1,082.45 km) |
| Montegrotto Terme to Lom | 572.73 mi (921.72 km) |
| Montegrotto Terme to Lovech | 657.28 mi (1,057.78 km) |
| Montegrotto Terme to Lukovit | 629.48 mi (1,013.06 km) |
| Montegrotto Terme to Lyaskovets | 706.05 mi (1,136.28 km) |
| Montegrotto Terme to Mezdra | 608.21 mi (978.82 km) |
| Montegrotto Terme to Momchilgrad | 731.55 mi (1,177.32 km) |
