| Gelsenkirchen to Ordu | 1,624.66 mi (2,614.63 km) |
| Gelsenkirchen to Ortahisar | 1,606.32 mi (2,585.12 km) |
| Gelsenkirchen to Ortakent | 1,401.08 mi (2,254.81 km) |
| Gelsenkirchen to Ortaklar | 1,366.42 mi (2,199.04 km) |
| Gelsenkirchen to Ortakoy | 1,568.20 mi (2,523.78 km) |
| Gelsenkirchen to Ortakoy | 1,546.90 mi (2,489.49 km) |
| Gelsenkirchen to Osmaneli | 1,335.47 mi (2,149.23 km) |
| Gelsenkirchen to Osmaniye | 1,734.69 mi (2,791.72 km) |
| Gelsenkirchen to Ozdere | 1,346.33 mi (2,166.72 km) |
| Gelsenkirchen to Palu | 1,808.61 mi (2,910.68 km) |
| Gelsenkirchen to Pamukkale | 1,422.19 mi (2,288.79 km) |
| Gelsenkirchen to Patnos | 1,906.96 mi (3,068.96 km) |
| Gelsenkirchen to Pazar | 1,590.49 mi (2,559.65 km) |
| Gelsenkirchen to Pazarcik | 1,756.59 mi (2,826.96 km) |
| Gelsenkirchen to Pazaryeri | 1,347.59 mi (2,168.73 km) |
