| Rockville Centre to Cadiz | 3,557.24 mi (5,724.83 km) |
| Rockville Centre to Calafell | 3,793.53 mi (6,105.10 km) |
| Rockville Centre to Calahorra | 3,596.28 mi (5,787.65 km) |
| Rockville Centre to Calasparra | 3,730.07 mi (6,002.97 km) |
| Rockville Centre to Calatayud | 3,639.09 mi (5,856.54 km) |
| Rockville Centre to Caldas de Montbuy | 3,808.08 mi (6,128.51 km) |
| Rockville Centre to Caldas de Reyes | 3,274.06 mi (5,269.08 km) |
| Rockville Centre to Calella | 3,831.54 mi (6,166.27 km) |
| Rockville Centre to Callosa de Segura | 3,773.13 mi (6,072.27 km) |
| Rockville Centre to Calpe | 3,801.04 mi (6,117.18 km) |
| Rockville Centre to Calvia | 3,888.74 mi (6,258.32 km) |
| Rockville Centre to Camas | 3,543.81 mi (5,703.21 km) |
| Rockville Centre to Cambados | 3,268.90 mi (5,260.79 km) |
| Rockville Centre to Cambre | 3,271.90 mi (5,265.62 km) |
| Rockville Centre to Cambrils | 3,773.67 mi (6,073.14 km) |
