| Halfway to Orthez | 3,843.56 mi (6,185.62 km) |
| Halfway to Orvault | 3,702.81 mi (5,959.09 km) |
| Halfway to Osny | 3,813.67 mi (6,137.51 km) |
| Halfway to Ostwald | 4,062.38 mi (6,537.77 km) |
| Halfway to Ouistreham | 3,710.69 mi (5,971.79 km) |
| Halfway to Oullins | 4,025.93 mi (6,479.11 km) |
| Halfway to Outreau | 3,751.94 mi (6,038.17 km) |
| Halfway to Oyonnax | 4,045.96 mi (6,511.34 km) |
| Halfway to Ozoir-la-Ferriere | 3,847.05 mi (6,191.23 km) |
| Halfway to Pace | 3,674.24 mi (5,913.11 km) |
| Halfway to Palaiseau | 3,830.55 mi (6,164.68 km) |
| Halfway to Pamiers | 3,962.82 mi (6,377.54 km) |
| Halfway to Panazol | 3,869.68 mi (6,227.65 km) |
| Halfway to Pantin | 3,832.20 mi (6,167.33 km) |
| Halfway to Paray-le-Monial | 3,974.13 mi (6,395.74 km) |
