| Calera to Olivares | 4,411.55 mi (7,099.70 km) |
| Calera to Olivenza | 4,330.20 mi (6,968.78 km) |
| Calera to Olot | 4,695.60 mi (7,556.84 km) |
| Calera to Onate | 4,443.72 mi (7,151.48 km) |
| Calera to Onda | 4,630.71 mi (7,452.41 km) |
| Calera to Onteniente | 4,647.27 mi (7,479.06 km) |
| Calera to Orihuela | 4,652.22 mi (7,487.02 km) |
| Calera to Osuna | 4,469.55 mi (7,193.04 km) |
| Calera to Ourense | 4,202.87 mi (6,763.87 km) |
| Calera to Oviedo | 4,274.69 mi (6,879.44 km) |
| Calera to Paiporta | 4,638.78 mi (7,465.40 km) |
| Calera to Pajara | 4,239.37 mi (6,822.61 km) |
| Calera to Palafolls | 4,723.02 mi (7,600.97 km) |
| Calera to Palafrugell | 4,734.70 mi (7,619.76 km) |
| Calera to Palamos | 4,735.27 mi (7,620.68 km) |
