| Diamond Bar to Cermik | 7,243.65 mi (11,657.52 km) |
| Diamond Bar to Cesme | 6,935.80 mi (11,162.10 km) |
| Diamond Bar to Ceyhan | 7,244.18 mi (11,658.38 km) |
| Diamond Bar to Ceylanpinar | 7,338.67 mi (11,810.44 km) |
| Diamond Bar to Cicekdagi | 7,050.49 mi (11,346.67 km) |
| Diamond Bar to Cide | 6,876.37 mi (11,066.45 km) |
| Diamond Bar to Cifteler | 6,989.78 mi (11,248.96 km) |
| Diamond Bar to Ciftlik | 7,143.47 mi (11,496.31 km) |
| Diamond Bar to Ciftlikkoy | 6,870.29 mi (11,056.66 km) |
| Diamond Bar to Cihanbeyli | 7,078.29 mi (11,391.41 km) |
| Diamond Bar to Cildir | 7,106.47 mi (11,436.77 km) |
| Diamond Bar to Cilimli | 6,895.71 mi (11,097.57 km) |
| Diamond Bar to Cinar | 7,287.71 mi (11,728.44 km) |
| Diamond Bar to Cinarcik | 6,866.53 mi (11,050.61 km) |
| Diamond Bar to Cine | 7,025.24 mi (11,306.03 km) |
