| Castelnau-le-Lez to Popovo | 1,116.13 mi (1,796.24 km) |
| Castelnau-le-Lez to Provadia | 1,177.57 mi (1,895.11 km) |
| Castelnau-le-Lez to Radnevo | 1,114.39 mi (1,793.43 km) |
| Castelnau-le-Lez to Radomir | 961.87 mi (1,547.99 km) |
| Castelnau-le-Lez to Rakitovo | 1,026.74 mi (1,652.38 km) |
| Castelnau-le-Lez to Rakovski | 1,066.21 mi (1,715.90 km) |
| Castelnau-le-Lez to Razgrad | 1,128.33 mi (1,815.87 km) |
| Castelnau-le-Lez to Razlog | 997.51 mi (1,605.33 km) |
| Castelnau-le-Lez to Ruse | 1,097.80 mi (1,766.74 km) |
| Castelnau-le-Lez to Samokov | 995.04 mi (1,601.36 km) |
| Castelnau-le-Lez to Sandanski | 993.62 mi (1,599.07 km) |
| Castelnau-le-Lez to Sevlievo | 1,063.99 mi (1,712.32 km) |
| Castelnau-le-Lez to Shumen | 1,151.61 mi (1,853.33 km) |
| Castelnau-le-Lez to Silistra | 1,159.93 mi (1,866.73 km) |
| Castelnau-le-Lez to Sliven | 1,129.01 mi (1,816.97 km) |
