| Gradignan to Popovo | 1,330.60 mi (2,141.39 km) |
| Gradignan to Provadia | 1,391.97 mi (2,240.16 km) |
| Gradignan to Radnevo | 1,334.69 mi (2,147.97 km) |
| Gradignan to Radomir | 1,183.65 mi (1,904.90 km) |
| Gradignan to Rakitovo | 1,250.29 mi (2,012.15 km) |
| Gradignan to Rakovski | 1,287.46 mi (2,071.97 km) |
| Gradignan to Razgrad | 1,341.51 mi (2,158.95 km) |
| Gradignan to Razlog | 1,222.12 mi (1,966.81 km) |
| Gradignan to Ruse | 1,309.69 mi (2,107.74 km) |
| Gradignan to Samokov | 1,217.36 mi (1,959.16 km) |
| Gradignan to Sandanski | 1,219.82 mi (1,963.10 km) |
| Gradignan to Sevlievo | 1,281.23 mi (2,061.94 km) |
| Gradignan to Shumen | 1,365.88 mi (2,198.17 km) |
| Gradignan to Silistra | 1,369.06 mi (2,203.29 km) |
| Gradignan to Sliven | 1,347.02 mi (2,167.82 km) |
