| Gilching to Orthez | 662.37 mi (1,065.98 km) |
| Gilching to Orvault | 603.13 mi (970.64 km) |
| Gilching to Osny | 427.04 mi (687.26 km) |
| Gilching to Ostwald | 167.57 mi (269.67 km) |
| Gilching to Ouistreham | 532.79 mi (857.44 km) |
| Gilching to Oullins | 348.12 mi (560.25 km) |
| Gilching to Outreau | 471.32 mi (758.51 km) |
| Gilching to Oyonnax | 294.34 mi (473.70 km) |
| Gilching to Ozoir-la-Ferriere | 397.60 mi (639.87 km) |
| Gilching to Pace | 602.25 mi (969.23 km) |
| Gilching to Palaiseau | 417.14 mi (671.32 km) |
| Gilching to Pamiers | 580.99 mi (935.02 km) |
| Gilching to Panazol | 496.04 mi (798.31 km) |
| Gilching to Pantin | 410.77 mi (661.08 km) |
| Gilching to Paray-le-Monial | 355.45 mi (572.05 km) |
