| Clarksville to Devnya | 5,576.37 mi (8,974.31 km) |
| Clarksville to Dimitrovgrad | 5,555.82 mi (8,941.24 km) |
| Clarksville to Dobrich | 5,569.91 mi (8,963.91 km) |
| Clarksville to Dospat | 5,518.29 mi (8,880.84 km) |
| Clarksville to Dupnitsa | 5,449.74 mi (8,770.50 km) |
| Clarksville to Elhovo | 5,587.47 mi (8,992.17 km) |
| Clarksville to Etropole | 5,458.72 mi (8,784.97 km) |
| Clarksville to Gabrovo | 5,508.39 mi (8,864.89 km) |
| Clarksville to Gorna Oryahovitsa | 5,510.18 mi (8,867.78 km) |
| Clarksville to Gotse Delchev | 5,505.01 mi (8,859.45 km) |
| Clarksville to Harmanli | 5,572.71 mi (8,968.40 km) |
| Clarksville to Haskovo | 5,559.87 mi (8,947.75 km) |
| Clarksville to Ihtiman | 5,469.31 mi (8,802.01 km) |
| Clarksville to Isperih | 5,525.93 mi (8,893.12 km) |
| Clarksville to Kardzhali | 5,565.07 mi (8,956.12 km) |
