| Pozzuoli to Oberkirch | 609.31 mi (980.59 km) |
| Pozzuoli to Obernburg am Main | 667.95 mi (1,074.96 km) |
| Pozzuoli to Obernkirchen | 825.14 mi (1,327.93 km) |
| Pozzuoli to Oberschleissheim | 528.27 mi (850.18 km) |
| Pozzuoli to Oberstdorf | 493.24 mi (793.79 km) |
| Pozzuoli to Obertraubling | 570.63 mi (918.35 km) |
| Pozzuoli to Obertshausen | 687.77 mi (1,106.85 km) |
| Pozzuoli to Oberursel | 701.03 mi (1,128.19 km) |
| Pozzuoli to Ochsenfurt | 640.75 mi (1,031.20 km) |
| Pozzuoli to Ochsenhausen | 541.32 mi (871.17 km) |
| Pozzuoli to Ochtrup | 851.78 mi (1,370.80 km) |
| Pozzuoli to Odenthal | 780.82 mi (1,256.61 km) |
| Pozzuoli to Oelde | 811.66 mi (1,306.24 km) |
| Pozzuoli to Oelsnitz | 669.49 mi (1,077.44 km) |
| Pozzuoli to Oer-Erkenschwick | 815.61 mi (1,312.59 km) |
