| Simmerath to Karlovo | 1,031.79 mi (1,660.50 km) |
| Simmerath to Karnobat | 1,119.93 mi (1,802.35 km) |
| Simmerath to Kavarna | 1,144.17 mi (1,841.36 km) |
| Simmerath to Kazanlak | 1,056.59 mi (1,700.41 km) |
| Simmerath to Knezha | 966.72 mi (1,555.78 km) |
| Simmerath to Kostinbrod | 961.66 mi (1,547.64 km) |
| Simmerath to Kozloduy | 941.01 mi (1,514.41 km) |
| Simmerath to Kyustendil | 965.34 mi (1,553.56 km) |
| Simmerath to Levski | 1,014.60 mi (1,632.83 km) |
| Simmerath to Lom | 919.37 mi (1,479.58 km) |
| Simmerath to Lovech | 1,007.35 mi (1,621.18 km) |
| Simmerath to Lukovit | 982.57 mi (1,581.29 km) |
| Simmerath to Lyaskovets | 1,049.18 mi (1,688.49 km) |
| Simmerath to Mezdra | 966.13 mi (1,554.84 km) |
| Simmerath to Momchilgrad | 1,104.91 mi (1,778.18 km) |
