| Campbellsville to Popovo | 5,406.16 mi (8,700.37 km) |
| Campbellsville to Provadia | 5,459.10 mi (8,785.57 km) |
| Campbellsville to Radnevo | 5,442.24 mi (8,758.44 km) |
| Campbellsville to Radomir | 5,314.70 mi (8,553.18 km) |
| Campbellsville to Rakitovo | 5,384.31 mi (8,665.21 km) |
| Campbellsville to Rakovski | 5,405.25 mi (8,698.91 km) |
| Campbellsville to Razgrad | 5,408.57 mi (8,704.25 km) |
| Campbellsville to Razlog | 5,364.37 mi (8,633.12 km) |
| Campbellsville to Ruse | 5,374.20 mi (8,648.95 km) |
| Campbellsville to Samokov | 5,347.89 mi (8,606.59 km) |
| Campbellsville to Sandanski | 5,370.92 mi (8,643.66 km) |
| Campbellsville to Sevlievo | 5,377.97 mi (8,655.00 km) |
| Campbellsville to Shumen | 5,435.68 mi (8,747.88 km) |
| Campbellsville to Silistra | 5,409.82 mi (8,706.27 km) |
| Campbellsville to Sliven | 5,440.22 mi (8,755.19 km) |
