| Horn Lake to Collegno | 4,891.83 mi (7,872.65 km) |
| Horn Lake to Cologno al Serio | 4,962.12 mi (7,985.76 km) |
| Horn Lake to Cologno Monzese | 4,946.73 mi (7,961.00 km) |
| Horn Lake to Colorno | 5,014.12 mi (8,069.45 km) |
| Horn Lake to Comacchio | 5,096.95 mi (8,202.74 km) |
| Horn Lake to Comiso | 5,507.14 mi (8,862.89 km) |
| Horn Lake to Como | 4,928.67 mi (7,931.92 km) |
| Horn Lake to Concordia Sagittaria | 5,083.28 mi (8,180.75 km) |
| Horn Lake to Concorezzo | 4,946.90 mi (7,961.27 km) |
| Horn Lake to Conegliano | 5,056.50 mi (8,137.66 km) |
| Horn Lake to Conselice | 5,089.54 mi (8,190.82 km) |
| Horn Lake to Conselve | 5,063.78 mi (8,149.37 km) |
| Horn Lake to Conversano | 5,449.86 mi (8,770.70 km) |
| Horn Lake to Copertino | 5,518.12 mi (8,880.55 km) |
| Horn Lake to Copparo | 5,075.02 mi (8,167.45 km) |
