| Friedrichsthal to Popovo | 998.26 mi (1,606.54 km) |
| Friedrichsthal to Provadia | 1,055.97 mi (1,699.43 km) |
| Friedrichsthal to Radnevo | 1,024.92 mi (1,649.45 km) |
| Friedrichsthal to Radomir | 891.47 mi (1,434.68 km) |
| Friedrichsthal to Rakitovo | 961.28 mi (1,547.04 km) |
| Friedrichsthal to Rakovski | 984.96 mi (1,585.14 km) |
| Friedrichsthal to Razgrad | 1,004.03 mi (1,615.82 km) |
| Friedrichsthal to Razlog | 940.63 mi (1,513.81 km) |
| Friedrichsthal to Ruse | 969.66 mi (1,560.52 km) |
| Friedrichsthal to Samokov | 924.96 mi (1,488.58 km) |
| Friedrichsthal to Sandanski | 947.08 mi (1,524.18 km) |
| Friedrichsthal to Sevlievo | 962.37 mi (1,548.78 km) |
| Friedrichsthal to Shumen | 1,030.81 mi (1,658.93 km) |
| Friedrichsthal to Silistra | 1,016.86 mi (1,636.48 km) |
| Friedrichsthal to Sliven | 1,027.04 mi (1,652.86 km) |
