| Mercer Island to Cehegin | 5,476.36 mi (8,813.34 km) |
| Mercer Island to Cervello | 5,406.67 mi (8,701.20 km) |
| Mercer Island to Cervera | 5,371.03 mi (8,643.83 km) |
| Mercer Island to Ceuti | 5,494.02 mi (8,841.78 km) |
| Mercer Island to Cheste | 5,434.30 mi (8,745.66 km) |
| Mercer Island to Chiclana de la Frontera | 5,423.59 mi (8,728.42 km) |
| Mercer Island to Chipiona | 5,396.68 mi (8,685.12 km) |
| Mercer Island to Chiva | 5,433.66 mi (8,744.63 km) |
| Mercer Island to Churriana de la Vega | 5,468.00 mi (8,799.90 km) |
| Mercer Island to Ciempozuelos | 5,303.62 mi (8,535.35 km) |
| Mercer Island to Cieza | 5,480.38 mi (8,819.82 km) |
| Mercer Island to Cisterniga | 5,189.98 mi (8,352.46 km) |
| Mercer Island to Ciudad de Melilla | 5,594.75 mi (9,003.88 km) |
| Mercer Island to Ciudad Real | 5,358.43 mi (8,623.56 km) |
| Mercer Island to Ciudad-Rodrigo | 5,184.71 mi (8,343.98 km) |
