| Schwalmstadt to Devnya | 1,010.63 mi (1,626.45 km) |
| Schwalmstadt to Dimitrovgrad | 988.24 mi (1,590.41 km) |
| Schwalmstadt to Dobrich | 1,006.51 mi (1,619.82 km) |
| Schwalmstadt to Dospat | 956.33 mi (1,539.06 km) |
| Schwalmstadt to Dupnitsa | 888.55 mi (1,429.98 km) |
| Schwalmstadt to Elhovo | 1,018.85 mi (1,639.68 km) |
| Schwalmstadt to Etropole | 891.95 mi (1,435.45 km) |
| Schwalmstadt to Gabrovo | 939.82 mi (1,512.50 km) |
| Schwalmstadt to Gorna Oryahovitsa | 941.60 mi (1,515.35 km) |
| Schwalmstadt to Gotse Delchev | 945.50 mi (1,521.63 km) |
| Schwalmstadt to Harmanli | 1,004.92 mi (1,617.27 km) |
| Schwalmstadt to Haskovo | 992.63 mi (1,597.48 km) |
| Schwalmstadt to Ihtiman | 904.56 mi (1,455.75 km) |
| Schwalmstadt to Isperih | 960.40 mi (1,545.61 km) |
| Schwalmstadt to Kardzhali | 999.14 mi (1,607.96 km) |
