| Trecastagni to Orthez | 923.85 mi (1,486.79 km) |
| Trecastagni to Orvault | 1,078.03 mi (1,734.92 km) |
| Trecastagni to Osny | 1,023.28 mi (1,646.80 km) |
| Trecastagni to Ostwald | 841.11 mi (1,353.63 km) |
| Trecastagni to Ouistreham | 1,110.09 mi (1,786.51 km) |
| Trecastagni to Oullins | 769.70 mi (1,238.71 km) |
| Trecastagni to Outreau | 1,120.82 mi (1,803.79 km) |
| Trecastagni to Oyonnax | 767.70 mi (1,235.49 km) |
| Trecastagni to Ozoir-la-Ferriere | 989.84 mi (1,592.99 km) |
| Trecastagni to Pace | 1,117.15 mi (1,797.87 km) |
| Trecastagni to Palaiseau | 1,000.46 mi (1,610.08 km) |
| Trecastagni to Pamiers | 803.25 mi (1,292.71 km) |
| Trecastagni to Panazol | 907.27 mi (1,460.11 km) |
| Trecastagni to Pantin | 1,004.50 mi (1,616.59 km) |
| Trecastagni to Paray-le-Monial | 828.60 mi (1,333.50 km) |
