| Diamond Bar to Chojnice | 5,816.30 mi (9,360.43 km) |
| Diamond Bar to Chojnow | 5,911.31 mi (9,513.33 km) |
| Diamond Bar to Chorzow | 6,042.53 mi (9,724.51 km) |
| Diamond Bar to Choszczno | 5,793.48 mi (9,323.71 km) |
| Diamond Bar to Chrzanow | 6,063.29 mi (9,757.92 km) |
| Diamond Bar to Ciechanow | 5,936.06 mi (9,553.16 km) |
| Diamond Bar to Ciechocinek | 5,891.79 mi (9,481.92 km) |
| Diamond Bar to Cieszyn | 6,065.74 mi (9,761.86 km) |
| Diamond Bar to Czarna Bialostocka | 5,969.81 mi (9,607.47 km) |
| Diamond Bar to Czarnkow | 5,836.94 mi (9,393.65 km) |
| Diamond Bar to Czechowice-Dziedzice | 6,065.95 mi (9,762.20 km) |
| Diamond Bar to Czeladz | 6,043.97 mi (9,726.84 km) |
| Diamond Bar to Czersk Pomorski | 5,821.19 mi (9,368.30 km) |
| Diamond Bar to Czestochowa | 6,018.24 mi (9,685.43 km) |
| Diamond Bar to Czluchow | 5,813.76 mi (9,356.35 km) |
