| Ostwald to Cologno al Serio | 225.34 mi (362.65 km) |
| Ostwald to Cologno Monzese | 221.44 mi (356.37 km) |
| Ostwald to Colorno | 280.07 mi (450.72 km) |
| Ostwald to Comacchio | 340.14 mi (547.41 km) |
| Ostwald to Comiso | 873.51 mi (1,405.77 km) |
| Ostwald to Como | 200.03 mi (321.92 km) |
| Ostwald to Concordia Sagittaria | 308.50 mi (496.48 km) |
| Ostwald to Concorezzo | 218.38 mi (351.45 km) |
| Ostwald to Conegliano | 283.03 mi (455.50 km) |
| Ostwald to Conselice | 340.54 mi (548.05 km) |
| Ostwald to Conselve | 301.57 mi (485.34 km) |
| Ostwald to Conversano | 697.11 mi (1,121.90 km) |
| Ostwald to Copertino | 765.39 mi (1,231.77 km) |
| Ostwald to Copparo | 318.82 mi (513.09 km) |
| Ostwald to Corato | 664.35 mi (1,069.17 km) |
