| Ronciglione to Orthez | 661.87 mi (1,065.18 km) |
| Ronciglione to Orvault | 759.45 mi (1,222.22 km) |
| Ronciglione to Osny | 676.41 mi (1,088.58 km) |
| Ronciglione to Ostwald | 484.38 mi (779.53 km) |
| Ronciglione to Ouistreham | 769.30 mi (1,238.07 km) |
| Ronciglione to Oullins | 437.34 mi (703.84 km) |
| Ronciglione to Outreau | 768.65 mi (1,237.03 km) |
| Ronciglione to Oyonnax | 424.49 mi (683.16 km) |
| Ronciglione to Ozoir-la-Ferriere | 642.46 mi (1,033.94 km) |
| Ronciglione to Pace | 790.29 mi (1,271.85 km) |
| Ronciglione to Palaiseau | 654.85 mi (1,053.88 km) |
| Ronciglione to Pamiers | 541.07 mi (870.77 km) |
| Ronciglione to Panazol | 593.69 mi (955.45 km) |
| Ronciglione to Pantin | 657.41 mi (1,058.00 km) |
| Ronciglione to Paray-le-Monial | 492.08 mi (791.93 km) |
