| Napa to Cortona | 6,116.04 mi (9,842.82 km) |
| Napa to Cosenza | 6,466.67 mi (10,407.10 km) |
| Napa to Cossato | 5,877.71 mi (9,459.27 km) |
| Napa to Costa Volpino | 5,918.05 mi (9,524.17 km) |
| Napa to Creazzo | 5,973.24 mi (9,613.00 km) |
| Napa to Crema | 5,932.36 mi (9,547.22 km) |
| Napa to Cremona | 5,955.39 mi (9,584.28 km) |
| Napa to Crevalcore | 6,010.39 mi (9,672.78 km) |
| Napa to Crispiano | 6,416.53 mi (10,326.40 km) |
| Napa to Crosia | 6,465.19 mi (10,404.71 km) |
| Napa to Crotone | 6,503.45 mi (10,466.29 km) |
| Napa to Cuneo | 5,924.88 mi (9,535.18 km) |
| Napa to Cuorgne | 5,872.42 mi (9,450.74 km) |
| Napa to Cusano Milanino | 5,907.88 mi (9,507.82 km) |
| Napa to Cutro | 6,502.76 mi (10,465.18 km) |
