| Cities | Distance |
|---|---|
| Gundelfingen to Popovo | 941.04 mi (1,514.45 km) |
| Gundelfingen to Provadia | 1,000.22 mi (1,609.70 km) |
| Gundelfingen to Radnevo | 962.34 mi (1,548.74 km) |
| Gundelfingen to Radomir | 823.57 mi (1,325.41 km) |
| Gundelfingen to Rakitovo | 893.50 mi (1,437.94 km) |
| Gundelfingen to Rakovski | 920.34 mi (1,481.15 km) |
| Gundelfingen to Razgrad | 948.23 mi (1,526.03 km) |
| Gundelfingen to Razlog | 871.08 mi (1,401.87 km) |
| Gundelfingen to Ruse | 914.25 mi (1,471.34 km) |
| Gundelfingen to Samokov | 857.50 mi (1,380.01 km) |
| Gundelfingen to Sandanski | 875.87 mi (1,409.58 km) |
| Gundelfingen to Sevlievo | 901.37 mi (1,450.61 km) |
| Gundelfingen to Shumen | 974.60 mi (1,568.47 km) |
| Gundelfingen to Silistra | 965.33 mi (1,553.56 km) |
| Gundelfingen to Sliven | 966.93 mi (1,556.12 km) |