| Grayslake to Cadiz | 4,207.82 mi (6,771.84 km) |
| Grayslake to Calafell | 4,381.63 mi (7,051.56 km) |
| Grayslake to Calahorra | 4,187.55 mi (6,739.21 km) |
| Grayslake to Calasparra | 4,353.15 mi (7,005.71 km) |
| Grayslake to Calatayud | 4,237.28 mi (6,819.24 km) |
| Grayslake to Caldas de Montbuy | 4,390.40 mi (7,065.67 km) |
| Grayslake to Caldas de Reyes | 3,884.23 mi (6,251.06 km) |
| Grayslake to Calella | 4,412.17 mi (7,100.71 km) |
| Grayslake to Callosa de Segura | 4,394.16 mi (7,071.72 km) |
| Grayslake to Calpe | 4,414.88 mi (7,105.06 km) |
| Grayslake to Calvia | 4,486.55 mi (7,220.40 km) |
| Grayslake to Camas | 4,187.43 mi (6,739.02 km) |
| Grayslake to Cambados | 3,880.48 mi (6,245.03 km) |
| Grayslake to Cambre | 3,875.01 mi (6,236.22 km) |
| Grayslake to Cambrils | 4,364.73 mi (7,024.35 km) |
