| Grosseto to Orthez | 600.16 mi (965.87 km) |
| Grosseto to Orvault | 693.82 mi (1,116.60 km) |
| Grosseto to Osny | 613.82 mi (987.84 km) |
| Grosseto to Ostwald | 431.71 mi (694.77 km) |
| Grosseto to Ouistreham | 705.38 mi (1,135.21 km) |
| Grosseto to Oullins | 371.97 mi (598.62 km) |
| Grosseto to Outreau | 708.32 mi (1,139.94 km) |
| Grosseto to Oyonnax | 360.52 mi (580.20 km) |
| Grosseto to Ozoir-la-Ferriere | 579.99 mi (933.41 km) |
| Grosseto to Pace | 724.93 mi (1,166.66 km) |
| Grosseto to Palaiseau | 591.87 mi (952.52 km) |
| Grosseto to Pamiers | 480.31 mi (772.99 km) |
| Grosseto to Panazol | 528.11 mi (849.92 km) |
| Grosseto to Pantin | 594.86 mi (957.34 km) |
| Grosseto to Paray-le-Monial | 427.17 mi (687.46 km) |
