| Boiro to Popovo | 1,762.80 mi (2,836.95 km) |
| Boiro to Provadia | 1,824.26 mi (2,935.86 km) |
| Boiro to Radnevo | 1,762.61 mi (2,836.65 km) |
| Boiro to Radomir | 1,610.19 mi (2,591.34 km) |
| Boiro to Rakitovo | 1,675.00 mi (2,695.65 km) |
| Boiro to Rakovski | 1,714.51 mi (2,759.24 km) |
| Boiro to Razgrad | 1,774.46 mi (2,855.71 km) |
| Boiro to Razlog | 1,645.63 mi (2,648.38 km) |
| Boiro to Ruse | 1,743.28 mi (2,805.55 km) |
| Boiro to Samokov | 1,643.37 mi (2,644.74 km) |
| Boiro to Sandanski | 1,641.32 mi (2,641.45 km) |
| Boiro to Sevlievo | 1,711.57 mi (2,754.50 km) |
| Boiro to Shumen | 1,798.22 mi (2,893.96 km) |
| Boiro to Silistra | 1,803.99 mi (2,903.23 km) |
| Boiro to Sliven | 1,776.83 mi (2,859.54 km) |
