| Gronau to Cologno al Serio | 473.59 mi (762.18 km) |
| Gronau to Cologno Monzese | 472.80 mi (760.91 km) |
| Gronau to Colorno | 525.48 mi (845.69 km) |
| Gronau to Comacchio | 569.67 mi (916.80 km) |
| Gronau to Comiso | 1,116.73 mi (1,797.20 km) |
| Gronau to Como | 451.90 mi (727.26 km) |
| Gronau to Concordia Sagittaria | 517.01 mi (832.05 km) |
| Gronau to Concorezzo | 469.24 mi (755.17 km) |
| Gronau to Conegliano | 497.35 mi (800.41 km) |
| Gronau to Conselice | 575.11 mi (925.55 km) |
| Gronau to Conselve | 529.71 mi (852.48 km) |
| Gronau to Conversano | 910.54 mi (1,465.37 km) |
| Gronau to Copertino | 976.35 mi (1,571.28 km) |
| Gronau to Copparo | 550.42 mi (885.81 km) |
| Gronau to Corato | 882.10 mi (1,419.60 km) |
