| Trowbridge to Karlovo | 1,396.81 mi (2,247.95 km) |
| Trowbridge to Karnobat | 1,488.57 mi (2,395.62 km) |
| Trowbridge to Kavarna | 1,515.89 mi (2,439.59 km) |
| Trowbridge to Kazanlak | 1,422.66 mi (2,289.54 km) |
| Trowbridge to Knezha | 1,333.46 mi (2,146.00 km) |
| Trowbridge to Kostinbrod | 1,323.80 mi (2,130.45 km) |
| Trowbridge to Kozloduy | 1,308.14 mi (2,105.25 km) |
| Trowbridge to Kyustendil | 1,323.45 mi (2,129.88 km) |
| Trowbridge to Levski | 1,382.64 mi (2,225.15 km) |
| Trowbridge to Lom | 1,285.75 mi (2,069.21 km) |
| Trowbridge to Lovech | 1,373.96 mi (2,211.17 km) |
| Trowbridge to Lukovit | 1,348.38 mi (2,170.01 km) |
| Trowbridge to Lyaskovets | 1,417.31 mi (2,280.93 km) |
| Trowbridge to Mezdra | 1,330.81 mi (2,141.73 km) |
| Trowbridge to Momchilgrad | 1,467.05 mi (2,360.99 km) |
