| Cities | Distance |
|---|---|
| Riedlingen to Popovo | 871.30 mi (1,402.22 km) |
| Riedlingen to Provadia | 929.99 mi (1,496.68 km) |
| Riedlingen to Radnevo | 894.86 mi (1,440.14 km) |
| Riedlingen to Radomir | 758.82 mi (1,221.21 km) |
| Riedlingen to Rakitovo | 828.73 mi (1,333.72 km) |
| Riedlingen to Rakovski | 853.84 mi (1,374.13 km) |
| Riedlingen to Razgrad | 877.99 mi (1,412.98 km) |
| Riedlingen to Razlog | 807.39 mi (1,299.37 km) |
| Riedlingen to Ruse | 843.85 mi (1,358.04 km) |
| Riedlingen to Samokov | 792.52 mi (1,275.43 km) |
| Riedlingen to Sandanski | 813.28 mi (1,308.86 km) |
| Riedlingen to Sevlievo | 833.13 mi (1,340.79 km) |
| Riedlingen to Shumen | 904.52 mi (1,455.68 km) |
| Riedlingen to Silistra | 893.77 mi (1,438.39 km) |
| Riedlingen to Sliven | 898.35 mi (1,445.75 km) |