| Cumberland to Popovo | 5,040.35 mi (8,111.66 km) |
| Cumberland to Provadia | 5,094.38 mi (8,198.61 km) |
| Cumberland to Radnevo | 5,074.16 mi (8,166.07 km) |
| Cumberland to Radomir | 4,943.90 mi (7,956.43 km) |
| Cumberland to Rakitovo | 5,013.69 mi (8,068.75 km) |
| Cumberland to Rakovski | 5,036.09 mi (8,104.80 km) |
| Cumberland to Razgrad | 5,043.43 mi (8,116.62 km) |
| Cumberland to Razlog | 4,992.95 mi (8,035.37 km) |
| Cumberland to Ruse | 5,008.97 mi (8,061.16 km) |
| Cumberland to Samokov | 4,977.33 mi (8,010.24 km) |
| Cumberland to Sandanski | 4,998.78 mi (8,044.76 km) |
| Cumberland to Sevlievo | 5,010.30 mi (8,063.29 km) |
| Cumberland to Shumen | 5,070.56 mi (8,160.27 km) |
| Cumberland to Silistra | 5,046.69 mi (8,121.87 km) |
| Cumberland to Sliven | 5,073.29 mi (8,164.66 km) |
