| Marbach am Neckar to Popovo | 897.28 mi (1,444.04 km) |
| Marbach am Neckar to Provadia | 954.92 mi (1,536.80 km) |
| Marbach am Neckar to Radnevo | 924.54 mi (1,487.90 km) |
| Marbach am Neckar to Radomir | 792.45 mi (1,275.33 km) |
| Marbach am Neckar to Rakitovo | 862.16 mi (1,387.51 km) |
| Marbach am Neckar to Rakovski | 885.00 mi (1,424.26 km) |
| Marbach am Neckar to Razgrad | 902.98 mi (1,453.21 km) |
| Marbach am Neckar to Razlog | 842.11 mi (1,355.24 km) |
| Marbach am Neckar to Ruse | 868.61 mi (1,397.89 km) |
| Marbach am Neckar to Samokov | 825.77 mi (1,328.95 km) |
| Marbach am Neckar to Sandanski | 849.16 mi (1,366.59 km) |
| Marbach am Neckar to Sevlievo | 861.77 mi (1,386.89 km) |
| Marbach am Neckar to Shumen | 929.78 mi (1,496.33 km) |
| Marbach am Neckar to Silistra | 915.83 mi (1,473.89 km) |
| Marbach am Neckar to Sliven | 926.31 mi (1,490.75 km) |
