| Healdsburg to Cassina de' Pecchi | 5,911.78 mi (9,514.09 km) |
| Healdsburg to Cassino | 6,266.86 mi (10,085.53 km) |
| Healdsburg to Castagneto Carducci | 6,079.73 mi (9,784.37 km) |
| Healdsburg to Castano Primo | 5,892.98 mi (9,483.84 km) |
| Healdsburg to Castel Bolognese | 6,047.65 mi (9,732.75 km) |
| Healdsburg to Castel Gandolfo | 6,219.47 mi (10,009.27 km) |
| Healdsburg to Castel Goffredo | 5,955.05 mi (9,583.72 km) |
| Healdsburg to Castel Maggiore | 6,021.38 mi (9,690.48 km) |
| Healdsburg to Castel Mella | 5,934.59 mi (9,550.80 km) |
| Healdsburg to Castel San Giorgio | 6,332.77 mi (10,191.62 km) |
| Healdsburg to Castel San Giovanni | 5,939.93 mi (9,559.40 km) |
| Healdsburg to Castel San Pietro Terme | 6,036.90 mi (9,715.46 km) |
| Healdsburg to Castel Volturno | 6,295.44 mi (10,131.53 km) |
| Healdsburg to Castelbuono | 6,482.64 mi (10,432.81 km) |
| Healdsburg to Casteldaccia | 6,459.27 mi (10,395.19 km) |
