| Healdsburg to Corato | 6,357.13 mi (10,230.81 km) |
| Healdsburg to Corbetta | 5,901.90 mi (9,498.19 km) |
| Healdsburg to Corciano | 6,129.10 mi (9,863.83 km) |
| Healdsburg to Cordenons | 5,975.85 mi (9,617.20 km) |
| Healdsburg to Cori | 6,232.74 mi (10,030.63 km) |
| Healdsburg to Coriano | 6,089.71 mi (9,800.45 km) |
| Healdsburg to Corigliano Calabro | 6,452.39 mi (10,384.12 km) |
| Healdsburg to Corleone | 6,465.95 mi (10,405.94 km) |
| Healdsburg to Cormano | 5,904.28 mi (9,502.03 km) |
| Healdsburg to Cornaredo | 5,903.33 mi (9,500.49 km) |
| Healdsburg to Cornate d'Adda | 5,907.08 mi (9,506.53 km) |
| Healdsburg to Cornedo Vicentino | 5,960.86 mi (9,593.08 km) |
| Healdsburg to Correggio | 5,993.58 mi (9,645.74 km) |
| Healdsburg to Corridonia | 6,156.21 mi (9,907.46 km) |
| Healdsburg to Corsico | 5,909.43 mi (9,510.31 km) |
