| Sulphur to Karlovo | 6,055.74 mi (9,745.78 km) |
| Sulphur to Karnobat | 6,139.63 mi (9,880.77 km) |
| Sulphur to Kavarna | 6,152.98 mi (9,902.27 km) |
| Sulphur to Kazanlak | 6,079.86 mi (9,784.59 km) |
| Sulphur to Knezha | 5,989.69 mi (9,639.48 km) |
| Sulphur to Kostinbrod | 5,986.07 mi (9,633.65 km) |
| Sulphur to Kozloduy | 5,963.73 mi (9,597.69 km) |
| Sulphur to Kyustendil | 5,988.26 mi (9,637.17 km) |
| Sulphur to Levski | 6,035.89 mi (9,713.83 km) |
| Sulphur to Lom | 5,942.77 mi (9,563.96 km) |
| Sulphur to Lovech | 6,030.33 mi (9,704.87 km) |
| Sulphur to Lukovit | 6,006.19 mi (9,666.03 km) |
| Sulphur to Lyaskovets | 6,070.17 mi (9,769.00 km) |
| Sulphur to Mezdra | 5,990.32 mi (9,640.48 km) |
| Sulphur to Momchilgrad | 6,129.36 mi (9,864.25 km) |
