| Castanet-Tolosan to Popovo | 1,236.53 mi (1,990.00 km) |
| Castanet-Tolosan to Provadia | 1,297.97 mi (2,088.89 km) |
| Castanet-Tolosan to Radnevo | 1,235.00 mi (1,987.53 km) |
| Castanet-Tolosan to Radomir | 1,082.47 mi (1,742.06 km) |
| Castanet-Tolosan to Rakitovo | 1,147.24 mi (1,846.30 km) |
| Castanet-Tolosan to Rakovski | 1,186.81 mi (1,909.98 km) |
| Castanet-Tolosan to Razgrad | 1,248.62 mi (2,009.46 km) |
| Castanet-Tolosan to Razlog | 1,117.93 mi (1,799.13 km) |
| Castanet-Tolosan to Ruse | 1,217.96 mi (1,960.12 km) |
| Castanet-Tolosan to Samokov | 1,115.61 mi (1,795.40 km) |
| Castanet-Tolosan to Sandanski | 1,113.86 mi (1,792.58 km) |
| Castanet-Tolosan to Sevlievo | 1,184.53 mi (1,906.32 km) |
| Castanet-Tolosan to Shumen | 1,272.00 mi (2,047.08 km) |
| Castanet-Tolosan to Silistra | 1,279.81 mi (2,059.66 km) |
| Castanet-Tolosan to Sliven | 1,249.59 mi (2,011.03 km) |
