| Cities | Distance |
|---|---|
| Calais to Olivenza | 952.59 mi (1,533.05 km) |
| Calais to Olot | 606.40 mi (975.91 km) |
| Calais to Onate | 582.51 mi (937.46 km) |
| Calais to Onda | 765.87 mi (1,232.55 km) |
| Calais to Onteniente | 846.33 mi (1,362.03 km) |
| Calais to Orihuela | 899.20 mi (1,447.13 km) |
| Calais to Osuna | 1,007.41 mi (1,621.27 km) |
| Calais to Ourense | 751.40 mi (1,209.26 km) |
| Calais to Oviedo | 636.28 mi (1,023.99 km) |
| Calais to Paiporta | 803.54 mi (1,293.17 km) |
| Calais to Pajara | 1,768.53 mi (2,846.18 km) |
| Calais to Palafolls | 642.52 mi (1,034.03 km) |
| Calais to Palafrugell | 627.03 mi (1,009.10 km) |
| Calais to Palamos | 631.80 mi (1,016.78 km) |
| Calais to Palencia | 687.29 mi (1,106.08 km) |