| Guilherand to Popovo | 1,061.55 mi (1,708.39 km) |
| Guilherand to Provadia | 1,122.93 mi (1,807.18 km) |
| Guilherand to Radnevo | 1,065.85 mi (1,715.31 km) |
| Guilherand to Radomir | 915.17 mi (1,472.83 km) |
| Guilherand to Rakitovo | 982.22 mi (1,580.73 km) |
| Guilherand to Rakovski | 1,018.80 mi (1,639.60 km) |
| Guilherand to Razgrad | 1,072.55 mi (1,726.10 km) |
| Guilherand to Razlog | 954.43 mi (1,536.01 km) |
| Guilherand to Ruse | 1,040.84 mi (1,675.07 km) |
| Guilherand to Samokov | 948.98 mi (1,527.24 km) |
| Guilherand to Sandanski | 952.81 mi (1,533.40 km) |
| Guilherand to Sevlievo | 1,012.14 mi (1,628.89 km) |
| Guilherand to Shumen | 1,096.84 mi (1,765.20 km) |
| Guilherand to Silistra | 1,100.65 mi (1,771.32 km) |
| Guilherand to Sliven | 1,077.96 mi (1,734.81 km) |
