| Round Rock to Chojnice | 5,453.07 mi (8,775.86 km) |
| Round Rock to Chojnow | 5,500.00 mi (8,851.39 km) |
| Round Rock to Chorzow | 5,645.07 mi (9,084.85 km) |
| Round Rock to Choszczno | 5,404.67 mi (8,697.97 km) |
| Round Rock to Chrzanow | 5,667.77 mi (9,121.40 km) |
| Round Rock to Ciechanow | 5,588.49 mi (8,993.81 km) |
| Round Rock to Ciechocinek | 5,527.93 mi (8,896.34 km) |
| Round Rock to Cieszyn | 5,657.93 mi (9,105.56 km) |
| Round Rock to Czarna Bialostocka | 5,652.24 mi (9,096.41 km) |
| Round Rock to Czarnkow | 5,454.06 mi (8,777.46 km) |
| Round Rock to Czechowice-Dziedzice | 5,663.81 mi (9,115.02 km) |
| Round Rock to Czeladz | 5,648.19 mi (9,089.89 km) |
| Round Rock to Czersk Pomorski | 5,462.88 mi (8,791.66 km) |
| Round Rock to Czestochowa | 5,629.05 mi (9,059.08 km) |
| Round Rock to Czluchow | 5,448.50 mi (8,768.51 km) |
