| Opelika to Casamassima | 5,347.13 mi (8,605.38 km) |
| Opelika to Casandrino | 5,229.46 mi (8,416.01 km) |
| Opelika to Casapulla | 5,226.20 mi (8,410.75 km) |
| Opelika to Casarano | 5,437.34 mi (8,750.55 km) |
| Opelika to Casatenovo | 4,852.76 mi (7,809.77 km) |
| Opelika to Casciana Terme | 4,979.31 mi (8,013.42 km) |
| Opelika to Cascina | 4,971.17 mi (8,000.33 km) |
| Opelika to Caselle Torinese | 4,796.58 mi (7,719.35 km) |
| Opelika to Caserta | 5,228.43 mi (8,414.34 km) |
| Opelika to Casier | 4,981.89 mi (8,017.58 km) |
| Opelika to Casorate Primo | 4,851.95 mi (7,808.47 km) |
| Opelika to Casoria | 5,232.89 mi (8,421.52 km) |
| Opelika to Cassano al Ionio | 5,363.80 mi (8,632.20 km) |
| Opelika to Cassano d'Adda | 4,866.77 mi (7,832.31 km) |
| Opelika to Cassano delle Murge | 5,343.01 mi (8,598.74 km) |
