| Duluth to Carmignano | 4,623.67 mi (7,441.08 km) |
| Duluth to Carovigno | 5,015.35 mi (8,071.42 km) |
| Duluth to Carpenedolo | 4,529.51 mi (7,289.54 km) |
| Duluth to Carpi | 4,573.02 mi (7,359.57 km) |
| Duluth to Carrara | 4,578.04 mi (7,367.64 km) |
| Duluth to Carugate | 4,481.60 mi (7,212.44 km) |
| Duluth to Casal di Principe | 4,872.70 mi (7,841.85 km) |
| Duluth to Casale Monferrato | 4,469.25 mi (7,192.57 km) |
| Duluth to Casale sul Sile | 4,585.56 mi (7,379.74 km) |
| Duluth to Casalecchio di Reno | 4,601.55 mi (7,405.48 km) |
| Duluth to Casalgrande | 4,577.10 mi (7,366.13 km) |
| Duluth to Casalmaggiore | 4,546.71 mi (7,317.22 km) |
| Duluth to Casalnuovo di Napoli | 4,885.53 mi (7,862.50 km) |
| Duluth to Casalpusterlengo | 4,510.28 mi (7,258.59 km) |
| Duluth to Casaluce | 4,875.95 mi (7,847.08 km) |
