| Waltham to Chojnice | 3,900.91 mi (6,277.91 km) |
| Waltham to Chojnow | 3,919.30 mi (6,307.51 km) |
| Waltham to Chorzow | 4,066.91 mi (6,545.06 km) |
| Waltham to Choszczno | 3,839.56 mi (6,179.17 km) |
| Waltham to Chrzanow | 4,089.90 mi (6,582.05 km) |
| Waltham to Ciechanow | 4,040.24 mi (6,502.13 km) |
| Waltham to Ciechocinek | 3,972.48 mi (6,393.09 km) |
| Waltham to Cieszyn | 4,074.02 mi (6,556.50 km) |
| Waltham to Czarna Bialostocka | 4,119.51 mi (6,629.71 km) |
| Waltham to Czarnkow | 3,890.49 mi (6,261.14 km) |
| Waltham to Czechowice-Dziedzice | 4,082.62 mi (6,570.34 km) |
| Waltham to Czeladz | 4,070.82 mi (6,551.35 km) |
| Waltham to Czersk Pomorski | 3,913.25 mi (6,297.77 km) |
| Waltham to Czestochowa | 4,055.81 mi (6,527.20 km) |
| Waltham to Czluchow | 3,895.33 mi (6,268.92 km) |
