| Cities | Distance |
|---|
| Zwettl to Provadia | 697.36 mi (1,122.29 km) |
| Zwettl to Radnevo | 678.50 mi (1,091.94 km) |
| Zwettl to Radomir | 562.03 mi (904.51 km) |
| Zwettl to Rakitovo | 629.22 mi (1,012.62 km) |
| Zwettl to Rakovski | 643.95 mi (1,036.34 km) |
| Zwettl to Razgrad | 645.99 mi (1,039.62 km) |
| Zwettl to Razlog | 614.52 mi (988.97 km) |
| Zwettl to Ruse | 611.48 mi (984.08 km) |
| Zwettl to Samokov | 593.08 mi (954.48 km) |
| Zwettl to Sandanski | 626.11 mi (1,007.62 km) |
| Zwettl to Sevlievo | 613.84 mi (987.89 km) |
| Zwettl to Shumen | 673.09 mi (1,083.23 km) |
| Zwettl to Silistra | 653.55 mi (1,051.79 km) |
| Zwettl to Sliven | 675.72 mi (1,087.47 km) |
| Zwettl to Smolyan | 670.86 mi (1,079.64 km) |
