| Pozzuoli to Oerlinghausen | 812.07 mi (1,306.90 km) |
| Pozzuoli to Oestrich-Winkel | 699.57 mi (1,125.85 km) |
| Pozzuoli to Offenburg | 609.01 mi (980.10 km) |
| Pozzuoli to Oftersheim | 648.96 mi (1,044.40 km) |
| Pozzuoli to Ohrdruf | 710.08 mi (1,142.76 km) |
| Pozzuoli to Ohringen | 620.96 mi (999.34 km) |
| Pozzuoli to Olbernhau | 681.18 mi (1,096.25 km) |
| Pozzuoli to Olching | 528.01 mi (849.74 km) |
| Pozzuoli to Oldenburg | 894.92 mi (1,440.23 km) |
| Pozzuoli to Oldenburg in Holstein | 943.07 mi (1,517.73 km) |
| Pozzuoli to Olfen | 817.75 mi (1,316.04 km) |
| Pozzuoli to Olpe | 765.74 mi (1,232.35 km) |
| Pozzuoli to Olsberg | 775.33 mi (1,247.77 km) |
| Pozzuoli to Oranienburg | 825.42 mi (1,328.38 km) |
| Pozzuoli to Ortenberg | 702.31 mi (1,130.26 km) |
