| Rockville Centre to Chojnice | 4,072.75 mi (6,554.46 km) |
| Rockville Centre to Chojnow | 4,091.16 mi (6,584.09 km) |
| Rockville Centre to Chorzow | 4,238.78 mi (6,821.65 km) |
| Rockville Centre to Choszczno | 4,011.47 mi (6,455.83 km) |
| Rockville Centre to Chrzanow | 4,261.76 mi (6,858.65 km) |
| Rockville Centre to Ciechanow | 4,212.06 mi (6,778.66 km) |
| Rockville Centre to Ciechocinek | 4,144.36 mi (6,669.70 km) |
| Rockville Centre to Cieszyn | 4,245.83 mi (6,833.00 km) |
| Rockville Centre to Czarna Bialostocka | 4,291.15 mi (6,905.94 km) |
| Rockville Centre to Czarnkow | 4,062.40 mi (6,537.80 km) |
| Rockville Centre to Czechowice-Dziedzice | 4,254.46 mi (6,846.89 km) |
| Rockville Centre to Czeladz | 4,242.69 mi (6,827.95 km) |
| Rockville Centre to Czersk Pomorski | 4,085.07 mi (6,574.29 km) |
| Rockville Centre to Czestochowa | 4,227.71 mi (6,803.84 km) |
| Rockville Centre to Czluchow | 4,067.18 mi (6,545.49 km) |
