| Martorell to Oberkirch | 572.47 mi (921.30 km) |
| Martorell to Obernburg am Main | 674.08 mi (1,084.83 km) |
| Martorell to Obernkirchen | 818.33 mi (1,316.98 km) |
| Martorell to Oberschleissheim | 663.76 mi (1,068.22 km) |
| Martorell to Oberstdorf | 580.56 mi (934.32 km) |
| Martorell to Obertraubling | 717.18 mi (1,154.18 km) |
| Martorell to Obertshausen | 679.84 mi (1,094.10 km) |
| Martorell to Oberursel | 682.06 mi (1,097.67 km) |
| Martorell to Ochsenfurt | 687.59 mi (1,106.57 km) |
| Martorell to Ochsenhausen | 601.38 mi (967.83 km) |
| Martorell to Ochtrup | 781.49 mi (1,257.69 km) |
| Martorell to Odenthal | 704.96 mi (1,134.52 km) |
| Martorell to Oelde | 773.43 mi (1,244.71 km) |
| Martorell to Oelsnitz | 788.16 mi (1,268.42 km) |
| Martorell to Oer-Erkenschwick | 746.11 mi (1,200.75 km) |
