| Grottaferrata to Popovo | 697.66 mi (1,122.77 km) |
| Grottaferrata to Provadia | 757.28 mi (1,218.73 km) |
| Grottaferrata to Radnevo | 680.69 mi (1,095.46 km) |
| Grottaferrata to Radomir | 528.64 mi (850.77 km) |
| Grottaferrata to Rakitovo | 586.71 mi (944.23 km) |
| Grottaferrata to Rakovski | 631.26 mi (1,015.91 km) |
| Grottaferrata to Razgrad | 712.85 mi (1,147.21 km) |
| Grottaferrata to Razlog | 555.38 mi (893.80 km) |
| Grottaferrata to Ruse | 687.00 mi (1,105.63 km) |
| Grottaferrata to Samokov | 559.19 mi (899.93 km) |
| Grottaferrata to Sandanski | 547.43 mi (881.00 km) |
| Grottaferrata to Sevlievo | 639.85 mi (1,029.75 km) |
| Grottaferrata to Shumen | 732.47 mi (1,178.80 km) |
| Grottaferrata to Silistra | 754.03 mi (1,213.49 km) |
| Grottaferrata to Sliven | 700.83 mi (1,127.87 km) |
