| Lake Oswego to Carmignano | 5,650.26 mi (9,093.21 km) |
| Lake Oswego to Carovigno | 6,002.39 mi (9,659.91 km) |
| Lake Oswego to Carpenedolo | 5,543.77 mi (8,921.84 km) |
| Lake Oswego to Carpi | 5,589.57 mi (8,995.55 km) |
| Lake Oswego to Carrara | 5,611.16 mi (9,030.29 km) |
| Lake Oswego to Carugate | 5,504.96 mi (8,859.37 km) |
| Lake Oswego to Casal di Principe | 5,897.12 mi (9,490.49 km) |
| Lake Oswego to Casale Monferrato | 5,506.58 mi (8,861.98 km) |
| Lake Oswego to Casale sul Sile | 5,576.93 mi (8,975.20 km) |
| Lake Oswego to Casalecchio di Reno | 5,617.46 mi (9,040.42 km) |
| Lake Oswego to Casalgrande | 5,597.62 mi (9,008.49 km) |
| Lake Oswego to Casalmaggiore | 5,565.73 mi (8,957.18 km) |
| Lake Oswego to Casalnuovo di Napoli | 5,908.61 mi (9,508.99 km) |
| Lake Oswego to Casalpusterlengo | 5,534.91 mi (8,907.58 km) |
| Lake Oswego to Casaluce | 5,899.80 mi (9,494.81 km) |
