| Royston to Popovo | 1,350.55 mi (2,173.50 km) |
| Royston to Provadia | 1,406.39 mi (2,263.37 km) |
| Royston to Radnevo | 1,381.90 mi (2,223.96 km) |
| Royston to Radomir | 1,252.46 mi (2,015.64 km) |
| Royston to Rakitovo | 1,322.05 mi (2,127.63 km) |
| Royston to Rakovski | 1,343.64 mi (2,162.38 km) |
| Royston to Razgrad | 1,354.83 mi (2,180.39 km) |
| Royston to Razlog | 1,302.35 mi (2,095.93 km) |
| Royston to Ruse | 1,320.31 mi (2,124.83 km) |
| Royston to Samokov | 1,285.63 mi (2,069.02 km) |
| Royston to Sandanski | 1,309.49 mi (2,107.42 km) |
| Royston to Sevlievo | 1,318.32 mi (2,121.63 km) |
| Royston to Shumen | 1,381.87 mi (2,223.91 km) |
| Royston to Silistra | 1,362.83 mi (2,193.26 km) |
| Royston to Sliven | 1,381.91 mi (2,223.97 km) |
