| Cities | Distance |
|---|
| Viterbo to Popovo | 717.33 mi (1,154.43 km) |
| Viterbo to Provadia | 777.81 mi (1,251.77 km) |
| Viterbo to Radnevo | 705.32 mi (1,135.10 km) |
| Viterbo to Radomir | 552.33 mi (888.89 km) |
| Viterbo to Rakitovo | 613.36 mi (987.11 km) |
| Viterbo to Rakovski | 656.13 mi (1,055.94 km) |
| Viterbo to Razgrad | 731.70 mi (1,177.56 km) |
| Viterbo to Razlog | 582.77 mi (937.88 km) |
| Viterbo to Ruse | 704.33 mi (1,133.50 km) |
| Viterbo to Samokov | 584.06 mi (939.95 km) |
| Viterbo to Sandanski | 576.59 mi (927.93 km) |
| Viterbo to Sevlievo | 661.00 mi (1,063.78 km) |
| Viterbo to Shumen | 752.53 mi (1,211.08 km) |
| Viterbo to Silistra | 770.37 mi (1,239.79 km) |
| Viterbo to Sliven | 723.63 mi (1,164.57 km) |
