| Mercer Island to Chivasso | 5,351.62 mi (8,612.60 km) |
| Mercer Island to Ciampino | 5,673.11 mi (9,129.99 km) |
| Mercer Island to Cicciano | 5,771.32 mi (9,288.04 km) |
| Mercer Island to Cingoli | 5,593.31 mi (9,001.57 km) |
| Mercer Island to Cinisello Balsamo | 5,364.25 mi (8,632.92 km) |
| Mercer Island to Cinisi | 5,906.12 mi (9,504.97 km) |
| Mercer Island to Cirie | 5,341.63 mi (8,596.52 km) |
| Mercer Island to Ciro Marina | 5,931.74 mi (9,546.21 km) |
| Mercer Island to Cislago | 5,352.07 mi (8,613.32 km) |
| Mercer Island to Cisterna di Latina | 5,691.45 mi (9,159.51 km) |
| Mercer Island to Cisternino | 5,854.20 mi (9,421.42 km) |
| Mercer Island to Citta di Castello | 5,564.01 mi (8,954.40 km) |
| Mercer Island to Citta Sant'Angelo | 5,665.02 mi (9,116.96 km) |
| Mercer Island to Cittadella | 5,421.14 mi (8,724.49 km) |
| Mercer Island to Cittanova | 5,969.80 mi (9,607.46 km) |
