| Cities | Distance |
|---|---|
| Zwettl to Karnobat | 703.08 mi (1,131.49 km) |
| Zwettl to Kavarna | 724.23 mi (1,165.53 km) |
| Zwettl to Kazanlak | 643.72 mi (1,035.97 km) |
| Zwettl to Knezha | 553.49 mi (890.75 km) |
| Zwettl to Kostinbrod | 556.74 mi (895.98 km) |
| Zwettl to Kozloduy | 527.36 mi (848.71 km) |
| Zwettl to Kyustendil | 568.09 mi (914.26 km) |
| Zwettl to Levski | 598.99 mi (963.98 km) |
| Zwettl to Lom | 507.23 mi (816.31 km) |
| Zwettl to Lovech | 594.02 mi (955.98 km) |
| Zwettl to Lukovit | 570.76 mi (918.54 km) |
| Zwettl to Lyaskovets | 633.28 mi (1,019.17 km) |
| Zwettl to Mezdra | 556.49 mi (895.58 km) |
| Zwettl to Momchilgrad | 697.92 mi (1,123.19 km) |
| Zwettl to Montana | 526.95 mi (848.04 km) |