| Ruthen to Karlovo | 978.09 mi (1,574.08 km) |
| Ruthen to Karnobat | 1,059.53 mi (1,705.15 km) |
| Ruthen to Kavarna | 1,076.44 mi (1,732.36 km) |
| Ruthen to Kazanlak | 1,001.07 mi (1,611.07 km) |
| Ruthen to Knezha | 910.84 mi (1,465.85 km) |
| Ruthen to Kostinbrod | 912.72 mi (1,468.88 km) |
| Ruthen to Kozloduy | 884.71 mi (1,423.80 km) |
| Ruthen to Kyustendil | 921.43 mi (1,482.89 km) |
| Ruthen to Levski | 956.03 mi (1,538.57 km) |
| Ruthen to Lom | 864.55 mi (1,391.35 km) |
| Ruthen to Lovech | 951.36 mi (1,531.07 km) |
| Ruthen to Lukovit | 928.07 mi (1,493.59 km) |
| Ruthen to Lyaskovets | 990.20 mi (1,593.58 km) |
| Ruthen to Mezdra | 913.55 mi (1,470.22 km) |
| Ruthen to Momchilgrad | 1,054.66 mi (1,697.30 km) |
