| Middlesex to Carmona | 3,606.17 mi (5,803.57 km) |
| Middlesex to Cartagena | 3,829.01 mi (6,162.20 km) |
| Middlesex to Cartama | 3,678.99 mi (5,920.76 km) |
| Middlesex to Cartaya | 3,536.94 mi (5,692.16 km) |
| Middlesex to Caspe | 3,760.84 mi (6,052.48 km) |
| Middlesex to Cassa de la Selva | 3,875.50 mi (6,237.02 km) |
| Middlesex to Castalla | 3,812.17 mi (6,135.10 km) |
| Middlesex to Castellbisbal | 3,847.16 mi (6,191.41 km) |
| Middlesex to Castelldefels | 3,853.01 mi (6,200.81 km) |
| Middlesex to Castello de Ampurias | 3,873.25 mi (6,233.40 km) |
| Middlesex to Castellon de la Plana | 3,799.09 mi (6,114.05 km) |
| Middlesex to Castilleja de la Cuesta | 3,588.21 mi (5,774.66 km) |
| Middlesex to Catarroja | 3,799.54 mi (6,114.77 km) |
| Middlesex to Catral | 3,819.62 mi (6,147.09 km) |
| Middlesex to Caudete | 3,793.54 mi (6,105.11 km) |
