| Calais to Orvault | 298.72 mi (480.75 km) |
| Calais to Osny | 130.83 mi (210.55 km) |
| Calais to Ostwald | 309.38 mi (497.90 km) |
| Calais to Ouistreham | 148.56 mi (239.09 km) |
| Calais to Oullins | 386.08 mi (621.33 km) |
| Calais to Outreau | 20.39 mi (32.82 km) |
| Calais to Oyonnax | 367.61 mi (591.62 km) |
| Calais to Ozoir-la-Ferriere | 154.36 mi (248.42 km) |
| Calais to Pace | 252.76 mi (406.78 km) |
| Calais to Palaiseau | 155.30 mi (249.93 km) |
| Calais to Pamiers | 541.24 mi (871.04 km) |
| Calais to Panazol | 353.90 mi (569.54 km) |
| Calais to Pantin | 143.80 mi (231.43 km) |
| Calais to Paray-le-Monial | 327.36 mi (526.83 km) |
| Calais to Parempuyre | 429.79 mi (691.67 km) |
