| Opelika to Castelfidardo | 5,109.50 mi (8,222.95 km) |
| Opelika to Castelfiorentino | 4,992.24 mi (8,034.23 km) |
| Opelika to Castelfranco di Sopra | 5,017.41 mi (8,074.75 km) |
| Opelika to Castelfranco di Sotto | 4,979.42 mi (8,013.60 km) |
| Opelika to Castelfranco Emilia | 4,963.22 mi (7,987.53 km) |
| Opelika to Castelfranco Veneto | 4,965.80 mi (7,991.68 km) |
| Opelika to Castellabate | 5,284.46 mi (8,504.52 km) |
| Opelika to Castellammare del Golfo | 5,270.33 mi (8,481.77 km) |
| Opelika to Castellammare di Stabia | 5,248.30 mi (8,446.32 km) |
| Opelika to Castellamonte | 4,793.24 mi (7,713.97 km) |
| Opelika to Castellana Grotte | 5,360.61 mi (8,627.07 km) |
| Opelika to Castellaneta | 5,359.65 mi (8,625.52 km) |
| Opelika to Castellanza | 4,837.56 mi (7,785.31 km) |
| Opelika to Castellarano | 4,952.52 mi (7,970.30 km) |
| Opelika to Castelleone | 4,884.81 mi (7,861.34 km) |
