| Alcobaca to Popovo | 1,828.44 mi (2,942.60 km) |
| Alcobaca to Provadia | 1,889.53 mi (3,040.90 km) |
| Alcobaca to Radnevo | 1,819.51 mi (2,928.21 km) |
| Alcobaca to Radomir | 1,666.45 mi (2,681.89 km) |
| Alcobaca to Rakitovo | 1,727.38 mi (2,779.96 km) |
| Alcobaca to Rakovski | 1,770.36 mi (2,849.12 km) |
| Alcobaca to Razgrad | 1,841.78 mi (2,964.06 km) |
| Alcobaca to Razlog | 1,696.50 mi (2,730.26 km) |
| Alcobaca to Ruse | 1,812.56 mi (2,917.03 km) |
| Alcobaca to Samokov | 1,698.30 mi (2,733.14 km) |
| Alcobaca to Sandanski | 1,689.24 mi (2,718.56 km) |
| Alcobaca to Sevlievo | 1,773.70 mi (2,854.49 km) |
| Alcobaca to Shumen | 1,863.88 mi (2,999.62 km) |
| Alcobaca to Silistra | 1,876.41 mi (3,019.80 km) |
| Alcobaca to Sliven | 1,837.20 mi (2,956.69 km) |
