| Mercer Island to Casamassima | 5,828.85 mi (9,380.63 km) |
| Mercer Island to Casandrino | 5,766.46 mi (9,280.23 km) |
| Mercer Island to Casapulla | 5,759.13 mi (9,268.42 km) |
| Mercer Island to Casarano | 5,915.57 mi (9,520.20 km) |
| Mercer Island to Casatenovo | 5,357.85 mi (8,622.63 km) |
| Mercer Island to Casciana Terme | 5,519.63 mi (8,882.99 km) |
| Mercer Island to Cascina | 5,508.62 mi (8,865.27 km) |
| Mercer Island to Caselle Torinese | 5,346.20 mi (8,603.88 km) |
| Mercer Island to Caserta | 5,760.35 mi (9,270.38 km) |
| Mercer Island to Casier | 5,433.44 mi (8,744.28 km) |
| Mercer Island to Casorate Primo | 5,373.00 mi (8,647.02 km) |
| Mercer Island to Casoria | 5,769.72 mi (9,285.47 km) |
| Mercer Island to Cassano al Ionio | 5,886.93 mi (9,474.09 km) |
| Mercer Island to Cassano d'Adda | 5,372.73 mi (8,646.58 km) |
| Mercer Island to Cassano delle Murge | 5,829.50 mi (9,381.68 km) |
