| Napa to Camarillo (California) | 335.23 mi (539.51 km) |
| Napa to Camas (Washington) | 504.63 mi (812.13 km) |
| Napa to Cambridge (Maryland) | 2,474.86 mi (3,982.90 km) |
| Napa to Cambridge (Massachusetts) | 2,669.52 mi (4,296.17 km) |
| Napa to Camden (Arkansas) | 1,672.52 mi (2,691.66 km) |
| Napa to Camden (New Jersey) | 2,502.64 mi (4,027.62 km) |
| Napa to Cameron Park (California) | 75.66 mi (121.77 km) |
| Napa to Camp Pendleton South (California) | 445.00 mi (716.15 km) |
| Napa to Camp Springs (Maryland) | 2,426.57 mi (3,905.19 km) |
| Napa to Camp Verde (Arizona) | 634.70 mi (1,021.46 km) |
| Napa to Campbell (California) | 72.80 mi (117.16 km) |
| Napa to Campbellsville (Kentucky) | 2,004.24 mi (3,225.51 km) |
| Napa to Campton Hills (Illinois) | 1,796.02 mi (2,890.42 km) |
| Napa to Canby (Oregon) | 481.83 mi (775.43 km) |
| Napa to Candelaria (Puerto Rico) | 3,615.34 mi (5,818.33 km) |
