| Riom to Popovo | 1,146.38 mi (1,844.92 km) |
| Riom to Provadia | 1,207.47 mi (1,943.24 km) |
| Riom to Radnevo | 1,155.02 mi (1,858.82 km) |
| Riom to Radomir | 1,006.21 mi (1,619.33 km) |
| Riom to Rakitovo | 1,074.30 mi (1,728.92 km) |
| Riom to Rakovski | 1,108.91 mi (1,784.62 km) |
| Riom to Razgrad | 1,156.40 mi (1,861.05 km) |
| Riom to Razlog | 1,047.49 mi (1,685.77 km) |
| Riom to Ruse | 1,123.89 mi (1,808.73 km) |
| Riom to Samokov | 1,040.26 mi (1,674.14 km) |
| Riom to Sandanski | 1,047.16 mi (1,685.25 km) |
| Riom to Sevlievo | 1,099.24 mi (1,769.06 km) |
| Riom to Shumen | 1,181.38 mi (1,901.25 km) |
| Riom to Silistra | 1,181.48 mi (1,901.41 km) |
| Riom to Sliven | 1,165.35 mi (1,875.45 km) |
