| Gelsenkirchen to Popovo | 1,052.55 mi (1,693.92 km) |
| Gelsenkirchen to Provadia | 1,106.85 mi (1,781.31 km) |
| Gelsenkirchen to Radnevo | 1,088.33 mi (1,751.49 km) |
| Gelsenkirchen to Radomir | 966.42 mi (1,555.31 km) |
| Gelsenkirchen to Rakitovo | 1,035.01 mi (1,665.69 km) |
| Gelsenkirchen to Rakovski | 1,052.59 mi (1,693.99 km) |
| Gelsenkirchen to Razgrad | 1,055.74 mi (1,699.04 km) |
| Gelsenkirchen to Razlog | 1,017.90 mi (1,638.15 km) |
| Gelsenkirchen to Ruse | 1,021.25 mi (1,643.55 km) |
| Gelsenkirchen to Samokov | 998.61 mi (1,607.11 km) |
| Gelsenkirchen to Sandanski | 1,027.32 mi (1,653.31 km) |
| Gelsenkirchen to Sevlievo | 1,023.86 mi (1,647.75 km) |
| Gelsenkirchen to Shumen | 1,082.85 mi (1,742.69 km) |
| Gelsenkirchen to Silistra | 1,060.98 mi (1,707.49 km) |
| Gelsenkirchen to Sliven | 1,086.01 mi (1,747.77 km) |
