| Holzminden to Cologno al Serio | 431.74 mi (694.81 km) |
| Holzminden to Cologno Monzese | 435.43 mi (700.76 km) |
| Holzminden to Colorno | 478.41 mi (769.93 km) |
| Holzminden to Comacchio | 508.33 mi (818.07 km) |
| Holzminden to Comiso | 1,058.41 mi (1,703.34 km) |
| Holzminden to Como | 416.23 mi (669.85 km) |
| Holzminden to Concordia Sagittaria | 446.48 mi (718.54 km) |
| Holzminden to Concorezzo | 431.17 mi (693.91 km) |
| Holzminden to Conegliano | 430.47 mi (692.77 km) |
| Holzminden to Conselice | 517.02 mi (832.06 km) |
| Holzminden to Conselve | 468.94 mi (754.68 km) |
| Holzminden to Conversano | 833.68 mi (1,341.68 km) |
| Holzminden to Copertino | 897.67 mi (1,444.67 km) |
| Holzminden to Copparo | 491.08 mi (790.32 km) |
| Holzminden to Corato | 807.71 mi (1,299.89 km) |
