| Neckargemund to Smolyan | 937.47 mi (1,508.72 km) |
| Neckargemund to Sofia | 834.21 mi (1,342.53 km) |
| Neckargemund to Sopot | 893.35 mi (1,437.70 km) |
| Neckargemund to Sozopol | 1,024.77 mi (1,649.21 km) |
| Neckargemund to Sredets | 1,006.47 mi (1,619.76 km) |
| Neckargemund to Stamboliyski | 906.58 mi (1,459.00 km) |
| Neckargemund to Stara Zagora | 939.02 mi (1,511.20 km) |
| Neckargemund to Svilengrad | 989.37 mi (1,592.24 km) |
| Neckargemund to Svishtov | 880.01 mi (1,416.25 km) |
| Neckargemund to Targovishte | 945.75 mi (1,522.04 km) |
| Neckargemund to Teteven | 862.68 mi (1,388.36 km) |
| Neckargemund to Troyan | 882.39 mi (1,420.08 km) |
| Neckargemund to Tryavna | 915.26 mi (1,472.97 km) |
| Neckargemund to Tutrakan | 918.37 mi (1,477.97 km) |
| Neckargemund to Varna | 1,003.71 mi (1,615.32 km) |
