| Drobak to Popovo | 1,304.52 mi (2,099.42 km) |
| Drobak to Provadia | 1,340.86 mi (2,157.91 km) |
| Drobak to Radnevo | 1,364.61 mi (2,196.12 km) |
| Drobak to Radomir | 1,292.86 mi (2,080.66 km) |
| Drobak to Rakitovo | 1,349.55 mi (2,171.89 km) |
| Drobak to Rakovski | 1,346.32 mi (2,166.69 km) |
| Drobak to Razgrad | 1,299.09 mi (2,090.68 km) |
| Drobak to Razlog | 1,345.14 mi (2,164.79 km) |
| Drobak to Ruse | 1,268.99 mi (2,042.23 km) |
| Drobak to Samokov | 1,317.21 mi (2,119.85 km) |
| Drobak to Sandanski | 1,362.52 mi (2,192.76 km) |
| Drobak to Sevlievo | 1,302.14 mi (2,095.59 km) |
| Drobak to Shumen | 1,323.68 mi (2,130.25 km) |
| Drobak to Silistra | 1,279.28 mi (2,058.81 km) |
| Drobak to Sliven | 1,348.54 mi (2,170.26 km) |
