| Healdsburg to Caldicot | 5,236.21 mi (8,426.87 km) |
| Healdsburg to Calne | 5,266.03 mi (8,474.85 km) |
| Healdsburg to Cam | 5,242.23 mi (8,436.56 km) |
| Healdsburg to Camberley | 5,308.52 mi (8,543.24 km) |
| Healdsburg to Camborne | 5,225.13 mi (8,409.04 km) |
| Healdsburg to Cambridge | 5,289.16 mi (8,512.09 km) |
| Healdsburg to Cambuslang | 4,988.94 mi (8,028.93 km) |
| Healdsburg to Canford Cliffs | 5,305.21 mi (8,537.91 km) |
| Healdsburg to Cannock | 5,202.89 mi (8,373.23 km) |
| Healdsburg to Canterbury | 5,364.19 mi (8,632.82 km) |
| Healdsburg to Carlisle | 5,068.15 mi (8,156.40 km) |
| Healdsburg to Carlton Colville | 5,320.64 mi (8,562.74 km) |
| Healdsburg to Carluke | 5,002.33 mi (8,050.47 km) |
| Healdsburg to Carnoustie | 4,996.03 mi (8,040.33 km) |
| Healdsburg to Carshalton | 5,323.77 mi (8,567.78 km) |
