| Grinon to Popovo | 1,556.37 mi (2,504.74 km) |
| Grinon to Provadia | 1,617.26 mi (2,602.72 km) |
| Grinon to Radnevo | 1,545.71 mi (2,487.58 km) |
| Grinon to Radomir | 1,392.78 mi (2,241.46 km) |
| Grinon to Rakitovo | 1,453.03 mi (2,338.42 km) |
| Grinon to Rakovski | 1,496.47 mi (2,408.33 km) |
| Grinon to Razgrad | 1,570.08 mi (2,526.80 km) |
| Grinon to Razlog | 1,421.98 mi (2,288.46 km) |
| Grinon to Ruse | 1,541.41 mi (2,480.66 km) |
| Grinon to Samokov | 1,424.36 mi (2,292.28 km) |
| Grinon to Sandanski | 1,414.37 mi (2,276.21 km) |
| Grinon to Sevlievo | 1,500.96 mi (2,415.55 km) |
| Grinon to Shumen | 1,591.74 mi (2,561.66 km) |
| Grinon to Silistra | 1,605.97 mi (2,584.56 km) |
| Grinon to Sliven | 1,564.00 mi (2,517.02 km) |
