| Grass Valley to Chivasso | 5,799.98 mi (9,334.17 km) |
| Grass Valley to Ciampino | 6,127.96 mi (9,862.01 km) |
| Grass Valley to Cicciano | 6,231.26 mi (10,028.24 km) |
| Grass Valley to Cingoli | 6,055.63 mi (9,745.60 km) |
| Grass Valley to Cinisello Balsamo | 5,818.86 mi (9,364.56 km) |
| Grass Valley to Cinisi | 6,351.02 mi (10,220.97 km) |
| Grass Valley to Cirie | 5,789.07 mi (9,316.61 km) |
| Grass Valley to Ciro Marina | 6,397.41 mi (10,295.63 km) |
| Grass Valley to Cislago | 5,806.12 mi (9,344.04 km) |
| Grass Valley to Cisterna di Latina | 6,146.53 mi (9,891.89 km) |
| Grass Valley to Cisternino | 6,324.98 mi (10,179.07 km) |
| Grass Valley to Citta di Castello | 6,022.91 mi (9,692.94 km) |
| Grass Valley to Citta Sant'Angelo | 6,127.87 mi (9,861.85 km) |
| Grass Valley to Cittadella | 5,885.48 mi (9,471.77 km) |
| Grass Valley to Cittanova | 6,428.11 mi (10,345.04 km) |
