| Cities | Distance |
|---|---|
| Diemen to Orbetello | 742.74 mi (1,195.33 km) |
| Diemen to Oria | 1,012.98 mi (1,630.24 km) |
| Diemen to Oristano | 875.74 mi (1,409.37 km) |
| Diemen to Orta Nova | 912.12 mi (1,467.91 km) |
| Diemen to Orte | 764.40 mi (1,230.18 km) |
| Diemen to Ortona | 817.55 mi (1,315.71 km) |
| Diemen to Orvieto | 742.39 mi (1,194.76 km) |
| Diemen to Orzinuovi | 529.26 mi (851.76 km) |
| Diemen to Osimo | 726.55 mi (1,169.28 km) |
| Diemen to Ospitaletto | 522.20 mi (840.39 km) |
| Diemen to Ostuni | 997.94 mi (1,606.03 km) |
| Diemen to Ottaviano | 911.16 mi (1,466.37 km) |
| Diemen to Ovada | 557.49 mi (897.19 km) |
| Diemen to Ozieri | 833.82 mi (1,341.91 km) |
| Diemen to Paceco | 1,056.68 mi (1,700.56 km) |