| Forfar to Popovo | 1,567.17 mi (2,522.12 km) |
| Forfar to Provadia | 1,617.48 mi (2,603.09 km) |
| Forfar to Radnevo | 1,609.86 mi (2,590.82 km) |
| Forfar to Radomir | 1,496.44 mi (2,408.29 km) |
| Forfar to Rakitovo | 1,563.83 mi (2,516.74 km) |
| Forfar to Rakovski | 1,577.51 mi (2,538.76 km) |
| Forfar to Razgrad | 1,568.00 mi (2,523.45 km) |
| Forfar to Razlog | 1,548.70 mi (2,492.39 km) |
| Forfar to Ruse | 1,534.01 mi (2,468.74 km) |
| Forfar to Samokov | 1,527.68 mi (2,458.56 km) |
| Forfar to Sandanski | 1,559.46 mi (2,509.70 km) |
| Forfar to Sevlievo | 1,544.75 mi (2,486.03 km) |
| Forfar to Shumen | 1,594.97 mi (2,566.85 km) |
| Forfar to Silistra | 1,565.78 mi (2,519.88 km) |
| Forfar to Sliven | 1,604.10 mi (2,581.55 km) |
