| Effingham to Cadiz | 4,327.74 mi (6,964.82 km) |
| Effingham to Calafell | 4,526.97 mi (7,285.45 km) |
| Effingham to Calahorra | 4,331.35 mi (6,970.64 km) |
| Effingham to Calasparra | 4,485.33 mi (7,218.44 km) |
| Effingham to Calatayud | 4,378.74 mi (7,046.90 km) |
| Effingham to Caldas de Montbuy | 4,537.73 mi (7,302.77 km) |
| Effingham to Caldas de Reyes | 4,020.46 mi (6,470.31 km) |
| Effingham to Calella | 4,560.12 mi (7,338.80 km) |
| Effingham to Callosa de Segura | 4,527.25 mi (7,285.91 km) |
| Effingham to Calpe | 4,550.85 mi (7,323.89 km) |
| Effingham to Calvia | 4,628.67 mi (7,449.13 km) |
| Effingham to Camas | 4,310.52 mi (6,937.11 km) |
| Effingham to Cambados | 4,016.18 mi (6,463.41 km) |
| Effingham to Cambre | 4,013.85 mi (6,459.66 km) |
| Effingham to Cambrils | 4,509.00 mi (7,256.53 km) |
