| Lake Oswego to Celano | 5,818.04 mi (9,363.23 km) |
| Lake Oswego to Cento | 5,602.61 mi (9,016.53 km) |
| Lake Oswego to Cepagatti | 5,813.76 mi (9,356.35 km) |
| Lake Oswego to Ceprano | 5,849.37 mi (9,413.65 km) |
| Lake Oswego to Cercola | 5,911.64 mi (9,513.87 km) |
| Lake Oswego to Cerea | 5,573.24 mi (8,969.27 km) |
| Lake Oswego to Cerese | 5,570.42 mi (8,964.73 km) |
| Lake Oswego to Cerignola | 5,925.45 mi (9,536.09 km) |
| Lake Oswego to Cermenate | 5,489.76 mi (8,834.91 km) |
| Lake Oswego to Cernusco sul Naviglio | 5,506.91 mi (8,862.51 km) |
| Lake Oswego to Cerreto Guidi | 5,649.81 mi (9,092.49 km) |
| Lake Oswego to Cerro Maggiore | 5,492.17 mi (8,838.80 km) |
| Lake Oswego to Certaldo | 5,666.84 mi (9,119.90 km) |
| Lake Oswego to Cerveteri | 5,786.25 mi (9,312.07 km) |
| Lake Oswego to Cervia | 5,657.65 mi (9,105.11 km) |
