| Guttenberg to Orbetello | 4,202.71 mi (6,763.61 km) |
| Guttenberg to Oria | 4,555.36 mi (7,331.15 km) |
| Guttenberg to Oristano | 4,173.15 mi (6,716.04 km) |
| Guttenberg to Orta Nova | 4,439.99 mi (7,145.48 km) |
| Guttenberg to Orte | 4,253.54 mi (6,845.40 km) |
| Guttenberg to Ortona | 4,345.31 mi (6,993.11 km) |
| Guttenberg to Orvieto | 4,232.38 mi (6,811.36 km) |
| Guttenberg to Orzinuovi | 4,047.43 mi (6,513.70 km) |
| Guttenberg to Osimo | 4,265.00 mi (6,863.86 km) |
| Guttenberg to Ospitaletto | 4,048.36 mi (6,515.20 km) |
| Guttenberg to Ostuni | 4,544.18 mi (7,313.15 km) |
| Guttenberg to Ottaviano | 4,403.79 mi (7,087.22 km) |
| Guttenberg to Ovada | 4,016.57 mi (6,464.05 km) |
| Guttenberg to Ozieri | 4,168.30 mi (6,708.24 km) |
| Guttenberg to Paceco | 4,423.89 mi (7,119.56 km) |
