| Hercules to Popovo | 6,479.08 mi (10,427.06 km) |
| Hercules to Provadia | 6,514.10 mi (10,483.43 km) |
| Hercules to Radnevo | 6,538.79 mi (10,523.16 km) |
| Hercules to Radomir | 6,457.24 mi (10,391.93 km) |
| Hercules to Rakitovo | 6,518.06 mi (10,489.81 km) |
| Hercules to Rakovski | 6,518.63 mi (10,490.72 km) |
| Hercules to Razgrad | 6,473.37 mi (10,417.89 km) |
| Hercules to Razlog | 6,510.27 mi (10,477.27 km) |
| Hercules to Ruse | 6,443.53 mi (10,369.86 km) |
| Hercules to Samokov | 6,484.20 mi (10,435.31 km) |
| Hercules to Sandanski | 6,525.52 mi (10,501.81 km) |
| Hercules to Sevlievo | 6,475.77 mi (10,421.74 km) |
| Hercules to Shumen | 6,497.66 mi (10,456.98 km) |
| Hercules to Silistra | 6,451.50 mi (10,382.68 km) |
| Hercules to Sliven | 6,523.13 mi (10,497.96 km) |
