| Ridderkerk to Orthez | 630.09 mi (1,014.04 km) |
| Ridderkerk to Orvault | 422.23 mi (679.52 km) |
| Ridderkerk to Osny | 223.76 mi (360.11 km) |
| Ridderkerk to Ostwald | 267.22 mi (430.05 km) |
| Ridderkerk to Ouistreham | 278.12 mi (447.59 km) |
| Ridderkerk to Oullins | 425.15 mi (684.21 km) |
| Ridderkerk to Outreau | 152.72 mi (245.79 km) |
| Ridderkerk to Oyonnax | 390.58 mi (628.57 km) |
| Ridderkerk to Ozoir-la-Ferriere | 229.58 mi (369.47 km) |
| Ridderkerk to Pace | 382.02 mi (614.80 km) |
| Ridderkerk to Palaiseau | 241.29 mi (388.32 km) |
| Ridderkerk to Pamiers | 620.34 mi (998.35 km) |
| Ridderkerk to Panazol | 442.41 mi (711.98 km) |
| Ridderkerk to Pantin | 226.90 mi (365.15 km) |
| Ridderkerk to Paray-le-Monial | 374.81 mi (603.20 km) |
