| Mercer Island to Carmignano | 5,512.32 mi (8,871.23 km) |
| Mercer Island to Carovigno | 5,861.62 mi (9,433.36 km) |
| Mercer Island to Carpenedolo | 5,405.38 mi (8,699.12 km) |
| Mercer Island to Carpi | 5,451.21 mi (8,772.87 km) |
| Mercer Island to Carrara | 5,473.69 mi (8,809.06 km) |
| Mercer Island to Carugate | 5,367.17 mi (8,637.62 km) |
| Mercer Island to Casal di Principe | 5,758.52 mi (9,267.45 km) |
| Mercer Island to Casale Monferrato | 5,369.60 mi (8,641.53 km) |
| Mercer Island to Casale sul Sile | 5,437.24 mi (8,750.40 km) |
| Mercer Island to Casalecchio di Reno | 5,478.99 mi (8,817.59 km) |
| Mercer Island to Casalgrande | 5,459.45 mi (8,786.14 km) |
| Mercer Island to Casalmaggiore | 5,427.56 mi (8,734.82 km) |
| Mercer Island to Casalnuovo di Napoli | 5,769.92 mi (9,285.79 km) |
| Mercer Island to Casalpusterlengo | 5,397.13 mi (8,685.84 km) |
| Mercer Island to Casaluce | 5,761.17 mi (9,271.71 km) |
