| Robertsville to Devnya | 4,890.89 mi (7,871.12 km) |
| Robertsville to Dimitrovgrad | 4,860.58 mi (7,822.34 km) |
| Robertsville to Dobrich | 4,886.62 mi (7,864.26 km) |
| Robertsville to Dospat | 4,818.09 mi (7,753.96 km) |
| Robertsville to Dupnitsa | 4,749.53 mi (7,643.63 km) |
| Robertsville to Elhovo | 4,895.07 mi (7,877.86 km) |
| Robertsville to Etropole | 4,762.82 mi (7,665.01 km) |
| Robertsville to Gabrovo | 4,815.80 mi (7,750.28 km) |
| Robertsville to Gorna Oryahovitsa | 4,819.60 mi (7,756.40 km) |
| Robertsville to Gotse Delchev | 4,803.49 mi (7,730.46 km) |
| Robertsville to Harmanli | 4,877.72 mi (7,849.93 km) |
| Robertsville to Haskovo | 4,864.08 mi (7,827.98 km) |
| Robertsville to Ihtiman | 4,771.39 mi (7,678.80 km) |
| Robertsville to Isperih | 4,840.67 mi (7,790.31 km) |
| Robertsville to Kardzhali | 4,867.68 mi (7,833.78 km) |
