| Redwood City to Collegno | 5,931.18 mi (9,545.31 km) |
| Redwood City to Cologno al Serio | 5,965.41 mi (9,600.40 km) |
| Redwood City to Cologno Monzese | 5,956.34 mi (9,585.81 km) |
| Redwood City to Colorno | 6,021.27 mi (9,690.30 km) |
| Redwood City to Comacchio | 6,085.26 mi (9,793.27 km) |
| Redwood City to Comiso | 6,600.60 mi (10,622.64 km) |
| Redwood City to Como | 5,935.18 mi (9,551.76 km) |
| Redwood City to Concordia Sagittaria | 6,042.68 mi (9,724.76 km) |
| Redwood City to Concorezzo | 5,954.61 mi (9,583.02 km) |
| Redwood City to Conegliano | 6,020.83 mi (9,689.60 km) |
| Redwood City to Conselice | 6,085.88 mi (9,794.28 km) |
| Redwood City to Conselve | 6,046.14 mi (9,730.33 km) |
| Redwood City to Conversano | 6,437.41 mi (10,360.01 km) |
| Redwood City to Copertino | 6,504.04 mi (10,467.23 km) |
| Redwood City to Copparo | 6,064.13 mi (9,759.27 km) |
