| Tadley to Popovo | 1,384.98 mi (2,228.91 km) |
| Tadley to Provadia | 1,441.87 mi (2,320.46 km) |
| Tadley to Radnevo | 1,413.36 mi (2,274.59 km) |
| Tadley to Radomir | 1,280.24 mi (2,060.34 km) |
| Tadley to Rakitovo | 1,350.08 mi (2,172.74 km) |
| Tadley to Rakovski | 1,373.73 mi (2,210.81 km) |
| Tadley to Razgrad | 1,390.06 mi (2,237.09 km) |
| Tadley to Razlog | 1,329.18 mi (2,139.10 km) |
| Tadley to Ruse | 1,355.59 mi (2,181.61 km) |
| Tadley to Samokov | 1,313.77 mi (2,114.31 km) |
| Tadley to Sandanski | 1,335.21 mi (2,148.82 km) |
| Tadley to Sevlievo | 1,350.49 mi (2,173.40 km) |
| Tadley to Shumen | 1,416.99 mi (2,280.43 km) |
| Tadley to Silistra | 1,400.35 mi (2,253.65 km) |
| Tadley to Sliven | 1,414.83 mi (2,276.94 km) |
