| Lake Oswego to Caltagirone | 6,136.03 mi (9,874.99 km) |
| Lake Oswego to Caltanissetta | 6,108.86 mi (9,831.26 km) |
| Lake Oswego to Calvisano | 5,542.56 mi (8,919.89 km) |
| Lake Oswego to Calvizzano | 5,905.44 mi (9,503.89 km) |
| Lake Oswego to Camaiore | 5,624.94 mi (9,052.47 km) |
| Lake Oswego to Cameri | 5,490.25 mi (8,835.70 km) |
| Lake Oswego to Camisano Vicentino | 5,566.81 mi (8,958.92 km) |
| Lake Oswego to Campagna | 5,942.48 mi (9,563.50 km) |
| Lake Oswego to Campagnano di Roma | 5,785.53 mi (9,310.92 km) |
| Lake Oswego to Campi Bisenzio | 5,653.24 mi (9,098.01 km) |
| Lake Oswego to Campi Salentina | 6,029.14 mi (9,702.96 km) |
| Lake Oswego to Campiglia Marittima | 5,684.39 mi (9,148.15 km) |
| Lake Oswego to Campobasso | 5,877.05 mi (9,458.19 km) |
| Lake Oswego to Campobello di Licata | 6,119.56 mi (9,848.47 km) |
| Lake Oswego to Campobello di Mazara | 6,065.23 mi (9,761.04 km) |
