| Healdsburg to Cadiz | 5,858.36 mi (9,428.12 km) |
| Healdsburg to Calafell | 5,906.34 mi (9,505.33 km) |
| Healdsburg to Calahorra | 5,728.86 mi (9,219.71 km) |
| Healdsburg to Calasparra | 5,946.36 mi (9,569.75 km) |
| Healdsburg to Calatayud | 5,788.93 mi (9,316.38 km) |
| Healdsburg to Caldas de Montbuy | 5,903.45 mi (9,500.68 km) |
| Healdsburg to Caldas de Reyes | 5,475.58 mi (8,812.10 km) |
| Healdsburg to Calella | 5,920.70 mi (9,528.45 km) |
| Healdsburg to Callosa de Segura | 5,981.65 mi (9,626.53 km) |
| Healdsburg to Calpe | 5,987.59 mi (9,636.09 km) |
| Healdsburg to Calvia | 6,024.57 mi (9,695.61 km) |
| Healdsburg to Camas | 5,825.87 mi (9,375.84 km) |
| Healdsburg to Cambados | 5,474.50 mi (8,810.36 km) |
| Healdsburg to Cambre | 5,454.39 mi (8,777.99 km) |
| Healdsburg to Cambrils | 5,896.05 mi (9,488.77 km) |
