| Waltrop to Karlovo | 1,022.87 mi (1,646.16 km) |
| Waltrop to Karnobat | 1,105.45 mi (1,779.05 km) |
| Waltrop to Kavarna | 1,123.33 mi (1,807.82 km) |
| Waltrop to Kazanlak | 1,046.18 mi (1,683.67 km) |
| Waltrop to Knezha | 955.95 mi (1,538.45 km) |
| Waltrop to Kostinbrod | 956.58 mi (1,539.47 km) |
| Waltrop to Kozloduy | 929.87 mi (1,496.48 km) |
| Waltrop to Kyustendil | 964.29 mi (1,551.87 km) |
| Waltrop to Levski | 1,001.61 mi (1,611.93 km) |
| Waltrop to Lom | 909.44 mi (1,463.60 km) |
| Waltrop to Lovech | 996.52 mi (1,603.75 km) |
| Waltrop to Lukovit | 972.96 mi (1,565.83 km) |
| Waltrop to Lyaskovets | 1,035.87 mi (1,667.07 km) |
| Waltrop to Mezdra | 958.09 mi (1,541.90 km) |
| Waltrop to Momchilgrad | 1,098.88 mi (1,768.47 km) |
