| Middle Valley to Popovo | 5,508.17 mi (8,864.54 km) |
| Middle Valley to Provadia | 5,561.96 mi (8,951.11 km) |
| Middle Valley to Radnevo | 5,542.40 mi (8,919.63 km) |
| Middle Valley to Radomir | 5,412.48 mi (8,710.54 km) |
| Middle Valley to Rakitovo | 5,482.25 mi (8,822.83 km) |
| Middle Valley to Rakovski | 5,504.49 mi (8,858.62 km) |
| Middle Valley to Razgrad | 5,511.10 mi (8,869.27 km) |
| Middle Valley to Razlog | 5,461.58 mi (8,789.56 km) |
| Middle Valley to Ruse | 5,476.66 mi (8,813.83 km) |
| Middle Valley to Samokov | 5,445.89 mi (8,764.31 km) |
| Middle Valley to Sandanski | 5,467.46 mi (8,799.02 km) |
| Middle Valley to Sevlievo | 5,478.47 mi (8,816.74 km) |
| Middle Valley to Shumen | 5,538.23 mi (8,912.92 km) |
| Middle Valley to Silistra | 5,513.87 mi (8,873.72 km) |
| Middle Valley to Sliven | 5,541.33 mi (8,917.91 km) |
