| Simmerath to Popovo | 1,060.20 mi (1,706.23 km) |
| Simmerath to Provadia | 1,116.31 mi (1,796.53 km) |
| Simmerath to Radnevo | 1,091.48 mi (1,756.57 km) |
| Simmerath to Radomir | 963.29 mi (1,550.27 km) |
| Simmerath to Rakitovo | 1,032.69 mi (1,661.96 km) |
| Simmerath to Rakovski | 1,053.50 mi (1,695.45 km) |
| Simmerath to Razgrad | 1,064.67 mi (1,713.41 km) |
| Simmerath to Razlog | 1,013.66 mi (1,631.33 km) |
| Simmerath to Ruse | 1,030.15 mi (1,657.87 km) |
| Simmerath to Samokov | 996.25 mi (1,603.31 km) |
| Simmerath to Sandanski | 1,021.50 mi (1,643.95 km) |
| Simmerath to Sevlievo | 1,027.84 mi (1,654.15 km) |
| Simmerath to Shumen | 1,091.69 mi (1,756.90 km) |
| Simmerath to Silistra | 1,073.60 mi (1,727.80 km) |
| Simmerath to Sliven | 1,091.41 mi (1,756.45 km) |
