| Grottaferrata to Orthez | 692.48 mi (1,114.44 km) |
| Grottaferrata to Orvault | 797.81 mi (1,283.96 km) |
| Grottaferrata to Osny | 717.79 mi (1,155.18 km) |
| Grottaferrata to Ostwald | 525.71 mi (846.05 km) |
| Grottaferrata to Ouistreham | 810.16 mi (1,303.83 km) |
| Grottaferrata to Oullins | 476.75 mi (767.25 km) |
| Grottaferrata to Outreau | 810.42 mi (1,304.24 km) |
| Grottaferrata to Oyonnax | 465.29 mi (748.81 km) |
| Grottaferrata to Ozoir-la-Ferriere | 683.87 mi (1,100.59 km) |
| Grottaferrata to Pace | 829.67 mi (1,335.23 km) |
| Grottaferrata to Palaiseau | 696.11 mi (1,120.28 km) |
| Grottaferrata to Pamiers | 570.86 mi (918.71 km) |
| Grottaferrata to Panazol | 631.03 mi (1,015.55 km) |
| Grottaferrata to Pantin | 698.80 mi (1,124.61 km) |
| Grottaferrata to Paray-le-Monial | 532.17 mi (856.44 km) |
