| Neckarsulm to Devnya | 966.09 mi (1,554.77 km) |
| Neckarsulm to Dimitrovgrad | 929.60 mi (1,496.04 km) |
| Neckarsulm to Dobrich | 965.13 mi (1,553.23 km) |
| Neckarsulm to Dospat | 889.95 mi (1,432.23 km) |
| Neckarsulm to Dupnitsa | 821.40 mi (1,321.92 km) |
| Neckarsulm to Elhovo | 964.40 mi (1,552.04 km) |
| Neckarsulm to Etropole | 831.91 mi (1,338.82 km) |
| Neckarsulm to Gabrovo | 885.17 mi (1,424.54 km) |
| Neckarsulm to Gorna Oryahovitsa | 890.03 mi (1,432.36 km) |
| Neckarsulm to Gotse Delchev | 876.94 mi (1,411.30 km) |
| Neckarsulm to Harmanli | 946.72 mi (1,523.60 km) |
| Neckarsulm to Haskovo | 933.19 mi (1,501.83 km) |
| Neckarsulm to Ihtiman | 841.31 mi (1,353.96 km) |
| Neckarsulm to Isperih | 916.75 mi (1,475.37 km) |
| Neckarsulm to Kardzhali | 937.37 mi (1,508.55 km) |
